Deuteronomy 8:14-15

14then your heart will 1become proud and you will 2forget the Lord your God who brought you out of the land of Egypt, out of the house of 3slavery;

15He who led you through 4the great and terrible wilderness, with its 5fiery serpents and scorpions, and its thirsty ground where there was no water; He who 6brought water for you out of the rock of flint.