Deuteronomy Chapter 8, Verse 19

19: And it shall be, if thou do at all forget the LORD thy God, and walk after other gods, and serve them, and worship them, I testify against you this day that ye shall surely perish.- edit KJV text
19: But if thou forget the Lord thy God, and follow strange gods, and serve and adore them: behold now I foretell thee that thou shalt utterly perish.— edit Douay text
19: And it shall come to pass if thou do at all forget the Lord thy God, and shouldest go after other gods, and serve them, and worship them, I call heaven and earth to witness against you this day, that ye shall surely perish.— edit LXX text