Deuteronomy 8:14-18

CLV(i) 14 then your heart becomes exalted and you forget Yahweh your Elohim Who was bringing you forth from the country of Egypt, from the house of servants, 15 Who was causing you to go through the great and fear-inspiring wilderness with burning serpents and scorpions and thirsty ground in which there is no water, Who was bringing forth for you water from the flinty rock, 16 Who was feeding you in the wilderness with manna, which your fathers had not known, that He might make you humble and that He might probe you, to do you good in your latter days. 17 Guard yourself lest you say in your heart:My vigor and the staunchness of my hand make for me this great estate. 18 Yet you will remember Yahweh your Elohim, for He is the One giving to you the vigor to make this estate, that He may confirm His covenant that He had sworn to your fathers, to Abraham, to Isaac and to Jacob, as in this day.