Deuteronomy 8:13-17

JPS_ASV_Byz(i) 13 and when thy herds and thy flocks multiply, and thy silver and thy gold is multiplied, and all that thou hast is multiplied; 14 then thy heart be lifted up, and thou forget the LORD thy God, who brought thee forth out of the land of Egypt, out of the house of bondage; 15 who led thee through the great and dreadful wilderness, wherein were serpents, fiery serpents, and scorpions, and thirsty ground where was no water; who brought thee forth water out of the rock of flint; 16 who fed thee in the wilderness with manna, which thy fathers knew not, that He might afflict thee, and that He might prove thee, to do thee good at thy latter end; 17 and thou say in thy heart: 'My power and the might of my hand hath gotten me this wealth.'