And it shall be, when the LORD your God shall have brought you into the land which he swore unto your fathers, to Abraham, to Isaac, and to Jacob, to give you great and beautiful cities, which you built not, And houses full of all good things, which you filled not, and wells dug, which you dug not, vineyards and olive trees, which you planted not; when you shall have eaten and be full; Then beware lest you forget the LORD, who brought you forth out of the land of Egypt, from the house of bondage. You shall fear the LORD your God, and serve him, and shall swear by his name. (Deuteronomy 6:10-13)