Deuteronomy 8:12-14

12lest—when you have eaten and are full, and have built beautiful houses and dwell in them;

13and when your herds and your flocks multiply, and your silver and your gold are multiplied, and all that you have is multiplied;

14when your heart is lifted up, and you forget the Lord your God who brought you out of the land of Egypt, from the house of bondage;