Deuteronomy 29:19-20

19“Those who hear the warnings of this curse should not congratulate themselves, thinking, ‘I am safe, even though I am following the desires of my own stubborn heart.’ This would lead to utter ruin!

20The Lord will never pardon such people. Instead his anger and jealousy will burn against them. All the curses written in this book will come down on them, and the Lord will erase their names from under heaven.