Deuteronomy 7:14-20

You will be blessed more than any other people. Every husband and wife will have children, and all your cattle will have calves. The LORD will take away all disease from you; you will not have the terrible diseases that were in Egypt, but he will give them to all the people who hate you. You must destroy all the people the LORD your God hands over to you. Do not feel sorry for them, and do not worship their gods, or they will trap you. You might say to yourselves, “Because these nations are stronger than we are, we can’t force them out.” But don’t be afraid of them. Remember what the LORD your God did to all of Egypt and its king. You saw for yourselves the troubles, signs, and miracles he did, how the LORD’s great power and strength brought you out of Egypt. The LORD your God will do the same thing to all the nations you now fear. The LORD your God will also send terror among them so that even those who are alive and hiding from you will die.