Deuteronomy 8:14-16

New Century Version

¹⁴ then your heart will become proud. You will forget the Lord your God, who brought you out of the land of Egypt, where you were slaves. ¹⁵ He led you through the large and terrible desert that was dry and had no water, and that had poisonous snakes and stinging insects. He gave you water from a solid rock ¹⁶ and manna to eat in the desert. Manna was something your ancestors had never seen. He did this to take away your pride and to test you, so things would go well for you in the end.