Deuteronomy 8:15-16

YLT(i) 15 who is causing thee to go in the great and the terrible wilderness—burning serpent, and scorpion, and thirst—where there is no water; who is bringing out to thee waters from the flinty rock; 16 who is causing thee to eat manna in the wilderness, which thy fathers have not known, in order to humble thee, and in order to try thee, to do thee good in thy latter end),