Moses
Deuteronomy 32:42KJV·traditional attribution

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.

John Calvin Reformed

42 I will make my arrows drunk with blood. In these words He describes a horrible massacre, as though He had said, There shall be no end to my vengeance, until the earth shall be full of blood and corpses. Elsewhere Jeremiah 46:10.

Matthew Henry Presbyterian

This conclusion of the song speaks three things: I. Glory to God, Deu 32:39. "See now upon the whole matter, that I, even I, am he. Learn this from the destruction of idolaters, and the inability of their idols to help them." The great God here demands the glory, 1. Of a self-existence: I, even I, am he.

Commenting on Deuteronomy 32:39-43

John Gill Reformed Baptist

Rejoice, O ye nations, with his people,.... Or, "rejoice, ye nations", who are "his" people; so Kimchi and Ben Melech interpret it; the Gentiles, who are the Lord's chosen and covenant people, redeemed and called, and the fulness of them now brought in, and so matter of great rejoicing; or rather, as the Septuagint, which is approved and confirmed by the Apostle Paul, "rejoice, ye...