Deuteronomy 8:15

12 And when you have taken food and are full, and have made fair houses for yourselves and are living in them;

13 And when your herds and your flocks are increased, and your stores of silver and gold, and you have wealth of every sort;

14 Take care that your hearts are not lifted up in pride, giving no thought to the Lord your God who took you out of the land of Egypt, out of the prison-house;

15 Who was your guide through that great and cruel waste, where there were poison-snakes and scorpions and a dry land without water; who made water come out of the hard rock for you;

16 Who gave you manna for your food in the waste land, a food which your fathers had never seen; so that your pride might be broken and your hearts tested for your good in the end;

17 Say not then, in your hearts, My power and the strength of my hands have got me this wealth.

18 But keep in mind the Lord your God: for it is he who gives you the power to get wealth, so that he may give effect to the agreement which he made by his oath with your fathers, as at this day.