Deuteronomy 31:21-23

New Century Version

²¹ Then when many troubles and terrible things happen to them, this song will testify against them, because the song will not be forgotten by their descendants. I know what they plan to do, even before I take them into the land I promised them.” ²² So Moses wrote down the song that day, and he taught it to the Israelites.

²³ Then the Lord gave this command to Joshua son of Nun: “Be strong and brave, because you will lead the people of Israel to the land I promised them, and I will be with you.”