Deuteronomy 31:20

31:20 For after I have brought them to the land I promised to their ancestors – one flowing with milk and honey – and they eat their fill and become fat, then they will turn to other gods and worship them; they will reject me and break my covenant.

Deuteronomy 31:27-29

31:27 for I know about your rebellion and stubbornness. Indeed, even while I have been living among you to this very day, you have rebelled against the Lord; you will be even more rebellious after my death! 31:28 Gather to me all your tribal elders and officials so I can speak to them directly about these things and call the heavens and the earth to witness against them. 31:29 For I know that after I die you will totally corrupt yourselves and turn away from the path I have commanded you to walk. Disaster will confront you in the days to come because you will act wickedly before the Lord, inciting him to anger because of your actions.”