Midras Kejadian 36:28: Aggadat Bereshit

Chapter (57) 58: Torah [1] And Jacob dwelt in the land (Genesis 37:1). This is what the scripture says: "The eternal God is thy dwelling-place, and underneath are the everlasting arms" (Deuteronomy 33:27). At that time, when Israel dwelt securely, he relied upon the Lord alone (Deuteronomy 33:28). You do not know who preceded, whether it was the dwelling place or the God who preceded, but then David came and explained through Moses, "A prayer of Moses, the man of God. 'O Lord, You have been our refuge in every generation.'" (Psalm 90:1), meaning that God never preceded His creatures, as it says, "Who hath first given to Me, that I should repay him?" (Job 41:3). "And underneath are the everlasting arms" (Deuteronomy 33:27). R. Berechiah said that the Holy One, blessed be He, said: "Although I have created the world and maintain it, when there are righteous men below, it is as if they were maintaining the world," hence "underneath are the everlasting arms." "And He will thrust out the enemy from before thee, and say: Destroy" (Deuteronomy 33:27), this refers to Esau (and his chiefs), for it is written, "And Esau took his wives" (Genesis 36:6). "And He will thrust out" and rely upon the Lord alone, "and Israel dwelt securely" (Deuteronomy 33:28).