Deuteronomy 32:42

Deu 32:42 I will make mine arrows drunk with blood, and my sword shall devour flesh; [and that] with the blood of the slain and of the captives, from the beginning of revenges upon the enemy.

Ver. 42. From the beginning of revenges. ] I will begin my revenges at the beginning of theirs. Esau began early with his brother Jacob, even in the very womb, and so held on; but God was even with him.