Deuteronomy 31:21

31:21 Then when many disasters and distresses overcome them this song will testify against them, for their descendants will not forget it. I know the intentions they have in mind today, even before I bring them to the land I have promised.”

Deuteronomy 31:26

31:26 “Take this scroll of the law and place it beside the ark of the covenant of the Lord your God. It will remain there as a witness against you,