Deuteronomy 31:20-22

Douay-Rheims 1899 American Edition

²⁰ For I will bring them into the land, for which I swore to their fathers, that floweth with milk and honey. And when they have eaten, and are full and fat, they will turn away after strange gods, and will serve them: and will despise me, and make void my covenant.

²¹ And after many evils and afflictions shall have come upon them, this canticle shall answer them for a testimony, which no oblivion shall take away out of the mouth of their seed. For I know their thoughts, and what they are about to do this day, before that I bring them into the land which I have promised them.

²² Moses therefore wrote the canticle and taught it to the children of Israel.