Deuteronomy 8:11, 19
Deuteronomy 8:11 NIV
Be careful that you do not forget the LORD your God, failing to observe his commands, his laws and his decrees that I am giving you this day.
Deuteronomy 8:19 NIV
If you ever forget the LORD your God and follow other gods and worship and bow down to them, I testify against you today that you will surely be destroyed.