Creation and providence happen first. God is not breaking into anything alien to himself in the incarnation. He is not uniting himself to stuff he “finds.” He started history and has controlled history all along the way.
That’s why revelation is never derivative. Every concept, every word, is a concept or word God planned from eternity. The word spoken and written do not break into history and neither did the Word made flesh.
History always belonged to him. Otherwise, the incarnation would simply be impossible.