Moses speaks a poetic song to the people of Israel. This is the end of Moses's quotation of Yahweh's words that begins in [Deuteronomy 32:20](./19.md). (See: [[rc://en/ta/man/translate/figs-parallelism]])
The words "vengeance" and "recompense" mean basically the same thing. AT: "I will have vengeance and punish Israel's enemies" (See: [[rc://en/ta/man/translate/figs-doublet]])
Yahweh speaks of the bad things that will happen to his enemies as if the bad things were people running eagerly to punish them. AT: "I will punish them quickly" (See: [[rc://en/ta/man/translate/figs-metaphor]])