Deuteronomy 10:15-17

15Yet the LORD set his affection on your ancestors and loved them, and he chose you, their descendants, above all the nations—as it is today. 16Circumcise your hearts, therefore, and do not be stiff-necked any longer. 17For the LORD your God is God of gods and Lord of lords, the great God, mighty and awesome, who shows no partiality and accepts no bribes.