Deuteronomy 6:10-15

10 And it shall be, when the LORD your God shall have brought you into the land which he swore to your fathers, to Abraham, to Isaac, and to Jacob, to give you great and goodly cities, which you built not,

11 And houses full of all good things, which you filled not, and wells dig, which you digged not, vineyards and olive trees, which you planted not; when you shall have eaten and be full;

12 Then beware lest you forget the LORD, which brought you forth out of the land of Egypt, from the house of bondage.

13 You shall fear the LORD your God, and serve him, and shall swear by his name.

14 You shall not go after other gods, of the gods of the people which are round about you;

15 (For the LORD your God is a jealous God among you) lest the anger of the LORD your God be kindled against you, and destroy you from off the face of the earth.