Bible Verses About Ingratitude to God: Warnings against

Beware lest you forget the LORD your God, in not keeping his commandments, and his ordinances, and his statutes, which I command you this day;

lest, when you have eaten and are full, and have built fine houses, and lived in them;

and when your herds and your flocks multiply, and your silver and your gold is multiplied, and all that you have is multiplied;

then your heart might be lifted up, and you forget the LORD your God, who brought you out of the land of Egypt, out of the house of bondage;