Presentations

Invited Address: “Pilgrimage Toward Unity – Recovery of Baptismal Spirituality,’ and panel participant discussing the Catholic – Mennonite – Lutheran Trilateral Conversaton on Baptism, Bridgefolk 2017 Conferece, Seattle University, Seattle, WA, July 27-30, 2017.

Invited Address: “Mary of Guadalupe: Not Just for Catholics Anymore,” Center for Global Catholicism and Inter-cultural Theology, DePaul University, Chicago, IL, May 25, 2017.

Invited Address: “Christian Unity – Reconciled Diversity in our Common Baptism.” Also led a workshop on Christian Unity and preached the homily for the closing Worship event for the Week of Prayer for Christian Unity, the North State Ecumenical Conference, Sacramento, CA, January 18, 2017.

Invited Address: “Toward the Restoration of Prebaptismal Anointing in the Armenian Rite of Baptism,” Armenian Liturgy Seminar (Plenary), Society of Oriental Liturgy, Etchmiadzin, Armenia, September 13, 2016. This was made possible by a travel grant from ISLA.

“Lenten Vespers Reflection,” Our Lady of Mercy Chapel, Geddes Hall, February 17, 2016. Sponsored by the Notre Dame Center for Liturgy.

“Toward a New Edition of St Cyril of Jerusalem’s Lectures on the Sacraments,” to the Problems in the Early History of Liturgy Seminar, Annual Meeting, North American Academy of Liturgy, Houston, TX, January 8, 2016.

Liturgical Studies Area Colloquium: "Re-imagining Liturgy's Past: The Eucharistic Prayer in Traditio Apostolica 4," September 21, 2015.

Invited Address: “Ecumenical Renewal of Baptismal Spirituality,” for “What We Have Seen and Heard": Fostering Baptismal Witness in the World: A Conference in Celebration of the 50th Anniversaries of Gaudium et Spes, Apostolicam Actuositatem and Ad Gentes, The Marten Program in Homiletics and Liturgy, University of Notre Dame, June 23, 2015.

Invited Address: “The Blood of the Martyrs: ‘Seed of the Church’ Yesterday and Today”: Martyrdom in the Early Churches and the Armenian Genocide,” Armenian Genocide Centennial Commemoration, April 21, 2015, University of Notre Dame. Sponsored by Campus Ministry, the ND Center for Liturgy, the Institute for Church Life, and The Nanovic Institute.

Invited Address: “The Blood of the Martyrs: ‘Seed of the Church’ Yesterday and Today,” Krikor and Clara Zohrab Information Center, The Eastern Diocese of the Armenian Church of America, New York, NY, October 9, 2014.

Invited Address: “Imagining Early Christian Liturgy: The Traditio apostolica – A Case Study,” for Liturgy’s Imagined Pasts: Methodologies and Materials in the Writing of Liturgical History Today, 2014 Institute of Sacred Music Conference, Yale Divinity School, New Haven Ct., June 15-18, 2014.

Invited Address: "What's New in the Study of the Liturgical Year?" Seminar for The Word in Time: Proclamation, Lectionary and Church Year, Valparaiso Institute of Liturgical Studies, 2014, Monday, April 28, 2014.

Invited Address: "The Extraordinary Nature of Ordinary Time,” The Word in Time: Proclamation, Lectionary and Church Year, Valparaiso Institute of Liturgical Studies, 2014, Tuesday, April 29, 2014.

Invited Address: “Sacrosanctum Concilium: A Liturgical ‘Magna Carta’ Then and Now,” Vice-Presidential Address, North American Academy of Liturgy, January 2, 2014, Orlando, Florida.

“Images of Baptism, Part 1 and Part 2,” for “Beloved Children, imitators of God: Deification and the Sacraments of initiation,” Notre Dame Center for Liturgy Symposium, Notre Dame, IN, June 17-20, 2013.

“The Constitution on the Sacred Liturgy and the Renewal of Liturgy in the Churches,” Damasus Winzen, OSB, Lecture, Mt. Saviour Monastery, Pine City, New York, May 3, 2013.

“The Virgin of Mary in Ecumenical Perspective,” to the National Workshop on Christian Unity, Columbus, Ohio, April 8-11, 2013.

“Liturgy and Theology,” Theology Majors Pro-Seminar, University of Notre Dame, February 19, 2013.

“Mary of Guadalupe and Advent,” St. Joseph Catholic Church, South Bend, IN, December 12, 2012.

“Three Advents in Advent,” for Advent Dinner, Pasquerilla East Dorm, University of Notre Dame, December 3, 2012.

“Introduction to Benedictine Spirituality,” for “Spiritualities of the Saints,” Notre Dame Vision Program, Institute for Church Life, September 5, 2012

“The Catechumenate: Its History, Use, and Misuse,” to the Lutheran Seminar, North American Academy of Liturgy, Montreal, Quebec, January 5, 2012.

"Ecumenical Implications of the New Translation of the Roman Missal," St. Joseph Valley Chapter of American Guild of Organists Meeting, Our Redeemer Lutheran Church, South Bend, IN, October 23, 2011.

“The Use of Icons in Liturgical Prayer,” Adult Forum, St. Barnabas in the Dunes Episcopal Church, Gary, IN, October 16, 2011.

Keynote address; “What is Normative for Contemporary Lutheran Worship? Word and Sacrament as Non-negotiable,” 2011 Leadership Conference, Experiencing God Through Preaching and Worship, Lutheran School of Theology at Chicago, April 4, 2011, Chicago, IL.

"Martyrs and Mass: The Interpolation of the Narrative of Institution into the Anaphora," for Problems in the Early History of Liturgy Seminar, North American Academy of Liturgy Seminar, San Francisco, CA, January 6-9, 2011.

Invited Address: "Liturgy, Ecumenism, and the Pursuit of Christian Unity” for Week of Prayer for Christian Unity, Roman Catholic Diocese of Cleveland, Ohio, January 21, 2011.

Invited Presentation: “The Sevenfold Gifts of the Holy Spirit in Scripture and Liturgy,” Mary Circle, Gloria Dei Lutheran Church, October 5, 2010.

Invited Address: “The Liturgical Year: A Scholarly Update,” Unfolding the Mystery of Christ: Exploring Liturgical Time, Notre Dame Center for Liturgy, June 14-16, 2010.

Invited Plenary Address: “Sharing ‘The Cup of Christ’: The Cessation of Martyrdom and Anaphoral Development,” International Congress of the Society of Oriental Liturgy (SOL), May 26-31, 2010, at the Volos Academy of Theology, Volos, Greece.

Review of Everett Ferguson, Baptism in the Early Church: History, Theology, and Liturgy in the First Five Centuries (Grand Rapids: Wm. B. Eerdmanns, 2009) to both The Lutheran Caucus and the Problems in the Early History of Liturgy Seminar, North American Academy of Liturgy Annual Meeting, Milwaukee, WI, January 7-10, 2010.

Advent Reflection: “The Virgin of Guadalupe and Advent,” Non-exempt Finance Division Christmas Lunch, University of Notre Dame, December 14, 2009.

Invited Lecture: “The Gift of Armenian Sacramental Theology and Liturgy to the Wider Church,” Public Lecture Series: The Armenian Church: A Distinctive Christian Voice, St. Nersess Armenian Seminary, New Rochelle, New York, Nov. 23, 2009.

Invited Lecture: “The Virgin of Guadalupe in Ecumenical Context: One Lutheran’s Perspective,” Annual Theotokos Lecture, Marquette University, Milwaukee, WI, November 15, 2009.

Invited Lecture: “Theological Norms for Lutheran Worship,” Regional Meeting, International Lutheran Fellowship, Gloria Dei Lutheran Church, South Bend, IN, November 7, 2009.

“Baptismal Liturgy in Fourth-Century Jerusalem in the Light of Recent Scholarship,” Society of Oriental Liturgy, September 17-21, 2008, Casa LaSalle, Rome, Italy.

Invited Lecture: “Common Language and Ecumenical Convergence,” the Consultation on Common Texts, Calvin College, Grand Rapids, MI, May 19, 2008.

Invited Lecture: “The Holy Spirit and Lutheran Liturgical-Sacramental Worship,” for Yale Institute of Sacred Music/Divinity School Conference, The Spirit in Worship and Worship in the Spirit, Yale Divinity School, February 21-4, 2008.

Invited Lecture: “Baptized for Justice; Walking Wet in the Way of the Cross,” for Eucharist and Justice, Southwest Liturgical Conference and Study Week, Tucson, AZ, January 16-19, 2008.

Workshop Leader: “The Virgin of Guadalupe: Ecumenical Icon of Justice?” for Eucharist and Justice, Southwest Liturgical Conference and Study Week, Tucson, AZ, January 16-19, 2008.

Invited Lecture: “Baptism and Chrismation in Third- and Fourth-Century Egypt,” International Theological Conference of the Russian Orthodox Church: Orthodox Teaching on the Sacraments of the Church, Danilovsky Monastery and Conference Center, Moscow, Russia, November 13-16, 2007.

Invited Panel Participant (the only non-Orthodox participant), Moscow Spiritual Academy, Trinity Sergiev Monastery, Sergiev Posad, Russia, November 17, 2007.

Invited Lecture, “Baptism and the Cross,” Society of the Holy Trinity Annual Retreat, Concordia Theological Seminary, Fort Wayne, IN, August 22, 2007.

Ecumenical Observer and Responder, International Anglican Liturgical Consultation, Astoria Palace Hotel, Palermo, Sicily, July 29-August 4, 2007 (made possible by a travel grant from ISLA).

“The Making of Benedictine Daily Prayer,” St. Bridgid of Kildare Monastery Oblates Retreat, Episcopal House of Prayer, Saint John’s Abbey, Collegeville, MN, July 11, 2007.

Invited Lecture:  "The Loss of a Common Language; The End of Ecumenical-Liturgical Convergence?" The Aidan Kavanagh Lecture, Yale Divinity School and Institute of Sacred Music, New Haven, CT, October 10, 2006.

Invited Lecture:  “Religiosidad Popular, The Virgin Mary, and Lutherans,” at the Cofradía Católica-Reformada Meeting, Santa Cruz Lutheran Church, Joliet, ILL, September 14, 2006.

Invited Three Lectures: “The Rites of Formation: Forming Seekers and Congregations into Communities of Faith,” The Annual Gathering of Catechumenate Practitioners,North American Association for the Catechumenate, Mount Carmel Spiritual Centre, Niagra Falls, Ontario, Canada, July 20 – 23, 2006.

Invited Lecture: “Walking Wet from the Hungry Feast: Living Out our Baptism in a Eucharistic Way,” The Rev. Wilfred A. Illies “Heart Speaks to Heart” Inaugural Memorial Lecture, Christ Church Newman Center, St. Cloud, MN, April 22, 2006.

“Liturgical-Sacramental Life in the Evangelical Lutheran Church in America at the Beginning of the 21st Century,” Yale Divinity School and Institute of Sacred Music Liturgy Colloquium, New Haven, CT, January 12, 2006.

"Santa María de Guadalupe y la Teologia Luterana," at La Abadía del Tepeyac, Cuautitlán, Mexico, October 21, 2005.

"Lutheran Worship in the 21st Millennium," Eck Center, University of Notre Dame, September 11, 2005, for the 125th Anniversary of Gloria Dei Lutheran Church, South Bend.

“Liturgy and Ecumenism: Gifts, Challenges, and Hopes for a Renewed Vision.” Godfrey Diekmann, OSB, Lecture.  Saint John’s School of Theology and Seminary, Saint John’s University, Collegeville, MN, April 21, 2005.

“Sub Tuum Praesidium: Popular Religion and the Development of the Theotokos Doctrine.” Conference on The Place of Christ in Liturgical Prayer: Christology, Trinity, and Liturgical Theology, Yale Institute of Sacred Music, Yale Divinity School, New Haven CT, Feb. 24-27, 2005.

“The Problem of Creedal Formulae in Traditio Apostolica 21:12-18,” Problems in the Early History of Liturgy Seminar, North American Academy of Liturgy, Louisville, KY, January 5-9, 2005.

“Mary of Guadalupe in a Lutheran Context, María de Guadalupe en un Contexto Luterano,” Encuentro Luterano: “In Christ – Room and Welcome: God’s People Encountering & Nurturing Latino Ministry,” La Iglesia Luterana de Santa Cruz, Joliet, IL, November 20, 2004.

“Ecumenical Reflections on Baptism,” to the Sisters and Board of Directors, St. Benedict’s Center, Benedictine Women of Madison, Madison, Wisconsin, October 9, 2004.

"The Use of the 'Our Father' in Liturgical Studies," LS-CJA Joint Colloquium, Department of Theology, University of Notre Dame, September 15, 2004.

“The Virgin of Guadalupe and Anglicans,” Holy Trinity Episcopal Church, South Bend, IN, May 26, 2004.

Guest Homilist, Joint Lutheran-Episcopal Ascension Day Eucharist, St. Paul Episcopal Church, Mishawaka, IN, May 20, 2004.

“Early Christian Liturgy Without Hippolytus of Rome,” for Faculty Colloquium at Concordia Theological Seminary, St. Louis, MO, May 4, 2004.

"Reflections on the Hopes and Challenges of Christian Unity," at Interfaith Christian Night Prayer, Week of Prayer for Christian Unity, University of Notre Dame, January 21, 2004.

"Recent Research on the Origins and Use of the Sanctus in the Eucharistic Prayer," Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, New York, New York, January 3-6, 2004.

2003

"Advent Reflections on the Blessed Virgin Mary," Adult Forum, Gloria Dei Lutheran Church, South Bend, IN, December 7 and 14, 2003.

"New Perspectives on Christian Initiation," for New Perspectives on the Sacramental Life of the Church, Corpus Christi University Parish Lecture Series, Toledo, Ohio, October 21, 2003.

"The Theologian in the Church and the Academy," GTS Brown-Bag luncheon, University of Notre Dame, October 3, 2003.

"Offering or Preparation of the Gifts?" Worship and Music Committee, Gloria Dei Lutheran Church, South Bend, IN. October 1, 2003.

2002

Panel Discussion Participant with Virgil Elizondo and Timothy Matovina: “The Virgin of Guadalupe and the Significance of December 12,” Institute for Latino Studies, University of Notre Dame, Notre Dame, IN, December 10, 2002.

Three Lectures on: “The Mystery of Baptism and the Liturgical Year,” St. Joseph Education Center, Dowling College, Roman Catholic Diocese of Des Moines, Des Moines, IA, Nov. 2, 2002.

Response to Gabriele Winkler "About the Formation of the Armenian Anaphoras: A Preliminary Overview," Worship Traditions in Armenia and the Neighboring Christian East, St. Gregory the Enlightener Armenian Church, White Plains, NY, September 26, 2002.

With Marcela Kliçova, "Jewish Table Prayer and Early Christian Eucharistic Praying," Masters in Theology Colloquium, Department of Theology, University of Notre Dame, September 18, 2002.

"Liturgical and Other Celebrations of the Virgin of Guadalupe: Catholic and Protestant,” Faculty Colloquium, School of Theology, Saint John’s University, Collegeville, MN, July 1, 2002.

Taught “Mary and the Saints in Liturgy, Doctrine, and Life,” School of Theology, Saint John’s University, Collegeville, MN, June 17-July 5, 2002.

Taught “Baptismal Spirituality,” Summer Institute of Christian Spirituality, Spring Hill College, Mobile, AL, June 3-8, 2002.

“Real Presence, Eucharistic Reservation, and Ecumenism,” Summer Institute of Christian Spirituality “Soul Food” Lecture Series, Spring Hill College, Mobile, AL, June 6, 2002.

“’Satis Est’: Ecumenical Catalyst or Narrow Reductionism?” for “How Much is Enough? Liturgy and the Church’s Unity,” The Institute of Liturgical Studies: Theology, Music, and Practice, Valparaiso University, Valparaiso, IN, April 9, 2002.

“Doxology: God’s Glory Breaking Through,” at Formed in Faith: Celebrating Catholic Identity, 40th Annual Southwest Liturgical Conference Study Week, Dioceses of Colorado Springs and Pueblo, Colorado Springs, Colorado, January 18, 2002.

“Ecumenical Movements, Achievements and Hurdles in the Church Today,” at Formed in Faith: Celebrating Catholic Identity, 40th Annual Southwest Liturgical Conference Study Week, Dioceses of Colorado Springs and Pueblo, Colorado Springs, Colorado, January 19, 2002.

“Tertullian’s ‘Diem baptismo sollemnioren’ Revisited: A Tentative Hypothesis on Baptism at Pentecost,” to the Early Christian Liturgy Seminar, North American Academy of Liturgy, Reston, VA, January 4, 2002.

2001

“Forum: The Sacraments of Christian Initiation,” Seventy-Fifth Anniversary of The Liturgical Press Conference, ”“Differing Visions, One Communion: Catholics and Liturgy in the United States,” The Liturgical Press, Saint John’s Abbey, Collegeville, MN, June 7, 2001.

“Dead and Buried in Christ that We might Live and Serve!” and “Born Anew as a Priestly Community of the Holy Spirit,” PastoralStudy Days: Bearers of the Gift – Living and Leading as Sacramental People, Roman Catholic Diocese of London, Ontario, May 15-16, 2001.

“Jews and Christians in Dialogue: The Liturgies of Holy Week,” MA/MTS Colloquium, Dept. of Theology, University of Notre Dame, April 18, 2001.

Response to Greg Sterling, “When Is a Prayer A Prayer? Prayer in Literature and Liturgy,” LS/CJA Colloquium, Dept. of Theology, University of Notre Dame,
April 4, 2001.

2000

“Confirmation: Then and Now,” for Regional Diocesan Conference: Sacramental Catechesis for Confirmation, Diocese of Orlando, Florida, Feb. 24-26, 2000.

“Preparation for Pascha? Lent in Christian Antiquity,” for Pro-Seminar for Theology Majors, University of Notre Dame, March 9. 2000.

“Liturgical Norms in the Light of Contemporary Liturgical Scholarship?" to the Problems in the Early History of the Liturgy seminar, North American Academy of Liturgy, Tampa, FL, Jan. 3, 2000.

1999

“Christian Worship at the Dawn of the Third Millennium,” Parish
Council Retreat, Hilltop Lutheran Church of the Ascension, South Bend, October 14, 1999.

"The New Millennium's Emmaus Road: Word, Song, and Sacrament," Monastic Liturgy Forum, Ferdinand-Saint Meinrad, IN, August 11-14, 1999.

"Baptismal 'Spirituality' in the Early Church and its Implications for the Church Today," Valparaiso Liturgical Institute, Valparaiso University, Valparaiso, IN, April 13-15, 1999.

1998

"Syllabus Preparation for THEO 100/200: Foundations of Theology," for the third session on teaching Theology for Department of Theology graduate students, November 11, 1998.

"Liturgy and Theology," M.A. Colloquium, Department of Theology, University of Notre Dame, Notre Dame, IN, October 7, 1998.

"Baptism as 'New Birth ex aqua et spiritu': An Investigation of Western Liturgical Sources," International Scholarly Congress: "Comparative Liturgy Fifty Years after Anton Baumstark (+1948)," Pontifical Oriental Institute, Rome, Italy, September 25-29, 1998.

"The 'Real' and Multiple 'Presences' of Christ in Contemporary Lutheran Liturgical and Sacramental Practice," Keynote Address, for Church and Eucharist: The Many Presences of Christ, Center for Pastoral Liturgy Conference, June, 1998, Notre Dame, IN.

"The 'Joint Declaration on Justification' and Lutheran-Roman Catholic Unity: Some Unresolved Questions," Faculty Colloquium, School of Theology, Saint John's University, Collegeville, MN, July 26, 1998.

"Baptism as 'New Birth by Water and the Holy Spirit,' according to Western Liturgical Sources: A Catena of Texts and the Beginnings of a Preliminary Study," to the Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, January 5, 1998, San Antonio, Texas.

"Living Water, Sealing Spirit: The Holy Spirit and the Rites of Christian Initiation," to Winds of Hope: Sunshine State Conference for Catechists, Roman Catholic Dioceses of Florida, January 10, 1998, St. Petersburg, Florida.

1997

Two-day workshop: "The Liturgies of the Paschal Triduum," Western North Dakota Synod, ELCA, Fall Theological Conference, Assumption Abbey, Richardton, ND, Nov. 2-4, 1997.

Response to: Gerard Austin, "Identity of a Eucharistic Church in an Ecumenical Age," Catholic Theological Society of America, Minneapolis, MN, June 7, 1997.

Response to: Richard J. Beauchesne, "Yves Cardinal Congar and Christian Worship (Life, Liturgy and Eucharist): Ecumenical Perspectives," Catholic Theological Society of America, Minneapolis, MN, June 6, 1997.

Guest Homilist for the Community Mass, Saint John's Abbey, Collegeville, MN, January 19, 1997 (Week of Prayer for Christian Unity).

1996

"One Body, One Spirit in Christ: The Eucharist as the Culmination of Christian Initiation." Key Note Address for National Meeting of Federation of Diocesan Liturgical Commissions (FDLC), Minneapolis, MN, October 10, 1996.

"What is Changing in Lutheran Liturgical and Sacramental Practice?" Fall Theology Conference for Western North Dakota Synod, ELCA, Assumption Abbey, Richardton, ND, November, 1996.

"Encountering Christ in the Liturgical Year," Series of Workshops for Worship and Education Leaders, Celebration Lutheran Church, Sartell, MN, August 28, October 30, 1996, and Feb. 5, 1997.

"We Can Go Home Again: Liturgy As A Welcome Place for the Displaced," Collegeville Pastoral Institute Conference: "The Experience of Place and Displacement in the Spiritual Journey," July 5 - 7, 1996, Collegeville, MN.

"Christian Worship: The What, Why, and When," Adult Forum, Christ Lutheran Church, Hendricks, MN, May 12, 1996.

"The Development and Meaning of Lent," Adult Forum, Salem Lutheran Church, St. Cloud, MN, Feb. 25, 1996.

"Holy Communion Practices in the ELCA: Frequency of Celebration and Ages for First Communion," Adult Forum, Atonement Lutheran Church, St. Cloud, MN. January 14, 1996.

"Response to 'Part Two: Holy Baptism' in the First Draft of 'The Use of the Means of Grace : A Statement on the Practice of Word and Sacrament with Commentary,'" to the Lutheran Seminar at the annual meeting of the North American Academy of Liturgy, Cincinnati, Ohio, January 4-7, 1996.

1995

"Why We Do What We Do in Christian Worship," Adult Forums, Celebration Lutheran Church, Sartell, MN, October 15 and October 29, 1995.

"Parish Worship: Baptism and Eucharist," Fall Bible Conference, Gethsemane Lutheran Church, Upsala, MN, October 8-10, 1995.

"Rites of Christian Initiation in the Lutheran Churches: Liturgical Texts and Future Directions," Societas Liturgica meeting, August, 1995, Dublin, Ireland.

"Adapting the Catholic Rites of Christian Initiation of Adults," 1995 CHARIS Summer Theological Conference and IMAGO DEI Arts in Worship Conference, Concordia College, Moorhead, MN, July 30-August 2, 1995.

"Rites of Christian Initiation in the Lutheran Churches: Liturgical Texts and Future Directions," Faculty Colloquium, School of Theology, June 26, 1995.

"Eucharist and Justice: Reflections From a Lutheran Perspective," Churches Responding to Change Conference, March 28, 1995, Saint John's University, Collegeville, MN.

Presider and Homilist for Joint Lutheran-Roman Catholic Concluding Service of the Word, Churches Responding to Change Conference, March 28, 1995, Saint John's University, Collegeville, MN.

"Worship and Culture," Adult Forum, March 26, University Lutheran Church of the Epiphany, Saint Cloud, MN.

"Mary and the Saints in Christian Spirituality," Guest presentation for Helen Rolfson, O.S.F., undergraduate class in Christian Spirituality, Feb. 27, 1995.

"The Postchrismational Structure of Apostolic Tradition 21 and the Rites of Christian Initiation in early Rome: A Tentative Hypothesis," Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, Boston, MA, January 5-8, 1995.

1994

"Christmas and the Cross: Why December 25?" Hill Monastic Manuscript Library, Saint John's University, November 29, 1994.

"Proclaiming the Word of God," Workshop for Lectors, University Lutheran Church of the Epiphany, Saint Cloud, MN, October, 1994.

"Liturgical Leadership in an Ecumenical Context," Focus Session, Ministry in the Year 2000 Conference, Saint John's University, June, 1994.

"The Grace-full Use of the Means of Grace: Theses on Worship and Worship Practices," Faculty Colloquium, Department of Theology, CSB/SJU, April 5, 1994.

"Preparation for Pascha? Lent in Christian Antiquity" Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, Jan. 2-5, 1994, in Charleston, SC.

"Hippolytus Revisited: The Context(s) of the Catechumenate in Chapters 16-20 of the Apostolic Tradition Ascribed to Hippolytus of Rome" Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, Jan. 2-5, 1994, in Charleston, SC.

1993

"Berakah, Anaphoral Theory, and Luther: One Lutheran's Response to Bryan Spinks," Faculty Colloquium, School of Theology, Saint John's University, Collegeville, MN, July 26, 1993.

"The Archaic Nature of the Sanctus, Institution Narrative, and Epiclesis of the Logos in the Anaphora Ascribed to Sarapion of Thmuis," Seventy-Fifth Anniversary Scholarly Congress, Pontifical Oriental Institute, Rome, Italy, June 5, 1993.

“The Archaic Nature of the Sanctus, Institution Narrative, and Epiclesis of the Logos in the Anaphora Ascribed to Sarapion of Thmuis," Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, Albuquerque, NM, Jan. 2, 1993.

“Theses on North American Lutheran Baptismal Theology and Practise,” Lutheran Seminar, North American Academy of Liturgy, Albuquerque, NM, Jan. 2, 1993.

1992

“Eight Theses on Christian Unity,” Program for Church Leaders, Center for Pastoral and Social Ministry, University of Notre Dame, Notre Dame, IN, November 17, 1992.

"The Challenge of the Creed," Program for Church Leaders, Center for Pastoral and Social Ministry, University of Notre Dame, Notre Dame, IN, October 9, 1992.

"The Origins and Meaning of Lent," Adult Forum, Sunnyside Presbyterian Church, South Bend, IN, March 22, 1992.

"A Challenging Faith for Tempting Times," Institute of Catechetical,
Formation for Catechists and Teachers, Diocese of Fort Wayne-South Bend, Warsaw, IN, March 7, 1992; Mishawaka, IN, March 13, 1992; Fort Wayne, IN, March 20, 1992.

"Where is Thmuis Anyway? The Prayer Book of Sarapion (Serapion?)
of Thmuis: The Contemporary Version," Liturgy Area Colloquium,
University of Notre Dame, Notre Dame, IN, Feb. 6, 1992.

"The Prayers of Sarapion of Thmuis," Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, Georgetown Conference Center, Washington, D.C., January 2, 1992.

"Theses on Baptism: Towards an ELCA Statement on Sacramental Theology and Practice," Lutheran Seminar, North American Academy of Liturgy, Georgetown Conference Center, Washington, D.C., January 2, 1992.

1991

"The Prayers of Sarapion: A Progress Report," Faculty Colloquium, School of Theology, St. John's University, Collegeville, MN, July 8, 1991.

"The Challenge of the Creed," Insitutute of Catechetical Formation for
Catechists, Diocese of Fort Wayne–South Bend, March 2, 1991

1990

"From Three Weeks to Forty Days: Baptismal Preparation and the Origins of Lent," Problems in the Early History of the Liturgy Seminar, North American Academy of Liturgy, Saint Louis, Mo., January 4, 1990.