Leviticus 20:20–26

^20*If a man has intercourse with his uncle’s wife, he disgraces his uncle, and he and the woman will pay the penalty; neither of them will have children. ^21*If a man marries his brother’s wife, they will die childless. He has done a ritually unclean thing and has disgraced his brother.

²²The Lord said, “Keep all my laws and commands, so that you will not be rejected by the land of Canaan, into which I am bringing you. ²³Do not adopt the customs of people who live there; I am driving out those pagans so that you can enter the land. They have disgusted me with all their evil practices. ²⁴But I have promised you this rich and fertile land as your possession, and I will give it to you. I am the Lord your God, and I have set you apart from the other nations. ²⁵So then, you must make a clear distinction between animals and birds that are ritually clean and those that are not. Do not eat unclean animals or birds. I have declared them unclean, and eating them would make you unclean. ²⁶You shall be holy and belong only to me, because I am the Lord and I am holy. I have set you apart from the other nations so that you would belong to me alone.