Psalms 74:12

In the same way we may suitably understand what we read in the psalm, "But God, our King before the worlds, hath wrought salvation in the midst of the earth;" so that the Lord Jesus may be understood to be our God who is before the worlds, because by him the worlds were made, working our salvation in the midst of the earth, for the Word was made flesh and dwelt in an earthly body.

Asaph hath understood, because on the Title of the Psalm there is, "understanding of Asaph." And what saith he? "But God, our King before the worlds, hath wrought Salvation in the midst of the earth" (ver. 12). On the one hand we cry, "No longer is there prophet, and us He will not know as yet:" but on the other hand, "our God, our King, who is before the worlds" (for He is Himself in the beginning of the Word by whom were made the worlds), "hath wrought Salvation in the midst of the earth." "God therefore, our King before the worlds," hath done what? "hath wrought Salvation in the midst of the earth:" and I am yet crying as if forsaken! ...Now the Gentiles are awake, and we are snoring, and as though God hath forsaken us, in dreams we are delirious. "He hath wrought Salvation in the midst of the earth."

"You strengthened the sea in your power; you crushed the heads of dragons on the waters." And truly it would show what he said earlier—namely, that the Lord the Savior was king before the ages, who deigned to suffer for us, so that he would destroy death by dying, bestow freedom to the captives and recompense to the guilty—so he repeats the miracles which he had once done among the nation of the Jews. For he strengthened the watery deeps of the Red Sea, when the water was divided in two walls so as to make the ship-traversing sea into a path of dry land. Next comes "You crushed the heads of dragons on the waters." The mystery of the earlier miracle explains well enough that that prefigurement of the crossing of the Red Sea was pointing to the waters of Holy Baptism, where the heads of dragons, that is, of unclean spirits, were made nothing because the salvific font makes clean the souls which the demons make unclean with the filth of their sins.