4. In human administrations, the industry and care of the lower officials arranges matters left to their charge by their chief. Their chief does not bestow upon them their faculty of industry and care, but merely allows it free play. If the industry and care came from their superior, the arrangement would be the superior's arrangement; and they would not be authors of the arrangement, but carriers of it into execution. But we have seen (B. I, Chap. LI: B. III, Chap. LXVII) that all wisdom and intelligence comes from God above; nor can any intellect understand anything except in the power of God, nor any agent do anything except in the same power. God Himself therefore by His providence immediately disposes all things; and whoever are called providers under Him, are executors of His providence.*
7. If God does not by Himself take immediate care of lower individualities, that must be either because He despises them, or because He fears to sully His dignity, as some say.* But that is irrational, for there is greater dignity in devising an arrangement than in working one out. If then God works in all things, as has been shown (Chap. LXVII), and that is not derogatory to His dignity, nay rather befits His universal and sovereign power, an immediate providence over individual things is no contemptible occupation for Him either, and throws no slur upon His dignity.
Hence it is said: Thou hast done the things of old and hast devised one thing after another (Judith ix, 4).
3.75 : That the Providence of God is exercised over Individual and Contingent Things
3.77 : That the arrangements of Divine Providence are carried into execution by means of Secondary Causes