Moses recites a song to the Children of Israel that testifies to their covenant with G-d. After Moses’ last speech to the children of Israel, G-d tells Moses to write down a song to teach to the Israelites. “Put this song in their mouths,” G-d says, “so that the words may become a witness for Me against them. After I bring them to the land that flows with milk and honey, they will eat and be satisfied and become obese. They will turn to other gods and serve them and mock Me and break My covenant. Then when many oppressive evils come upon them, this song will testify against them as witness.” On that day, Moses wrote down the song and taught it to the children of Israel.