Deuteronomy 7:12-15

“Then it shall come about, because you listen to these judgments and keep and do them, that the LORD your God will keep with you the covenant and the [steadfast] lovingkindness which He swore to your fathers. He will love you and bless you and multiply you; He will also bless the fruit of your womb and the fruit of your land, your grain and your new wine and your [olive] oil, the offspring of your cattle and the young of your flock, in the land which He swore to your fathers to give you. You shall be blessed above all peoples; there will be no male or female barren (childless, infertile) among you or among your cattle. The LORD will take away from you all sickness; and He will not subject you to any of the harmful diseases of Egypt which you have known, but He will impose them on all [those] who hate you.