Deuteronomy 8:12-17

12lest when thou hast eaten and art full, and hast built goodly houses, and dwelt therein;

13and when thy herds and thy flocks multiply, and thy silver and thy gold is multiplied, and all that thou hast is multiplied;

14then thine heart be lifted up, and thou forget the LORD thy God, which brought thee forth out of the land of Egypt, out of the house of bondage;

15who led thee through the great and terrible wilderness, wherein were fiery serpents and scorpions, and thirsty ground where was no water; who brought thee forth water out of the rock of flint;

16who fed thee in the wilderness with manna, which thy fathers knew not; that he might humble thee, and that he might prove thee, to do thee good at thy latter end:

17and thou say in thine heart, My power and the might of mine hand hath gotten me this wealth.