Deuteronomy 31:21-23

21st Century King James Version

²¹ And it shall come to pass, when many evils and troubles have befallen them, that this song shall testify against them as a witness; for it shall not be forgotten out of the mouths of their seed. For I know their imagination and that which they go about, even now, before I have brought them into the land which I swore.”

²² Moses therefore wrote this song the same day, and taught it to the children of Israel.

²³ And He gave Joshua, the son of Nun, a charge and said, “Be strong and of good courage; for thou shalt bring the children of Israel into the land which I swore unto them, and I will be with thee.”