Deuteronomy 7:12-16

12“1Then it shall come about, because you listen to these judgments and keep and do them, that the Lord your God will keep 2His covenant with you and 3His faithfulness which He swore to your forefathers. 13And He will 4love you, bless you, and 5make you numerous; He will also bless the fruit of your womb and the fruit of your ground, your grain, your new wine, and your oil, the newborn of your cattle and the offspring of your flock, 6in the land which He swore to your forefathers to give you. 14You shall be blessed above all peoples; there will be no sterile male or 7infertile female among you or among your cattle. 15And 8the Lord will remove from you all sickness; and He will not inflict upon you any of the harmful diseases of Egypt which you have known, but He will give them to all who hate you. 16You shall consume all the peoples whom the Lord your God will turn over to you; 9your eye shall not pity them, nor shall you serve their gods, for that would be 10a snare to you.