Deuteronomy 8:10, 19
Deuteronomy 8:10 AMP
When you have eaten and are satisfied, then you shall bless the LORD your God for the good land which He has given you.
Deuteronomy 8:19 AMP
And it shall come about if you ever forget the LORD your God and follow other gods and serve them and worship them, I testify against you today that you will most certainly perish.