Leviticus 20:20-22

Revised Standard Version

²⁰ If a man lies with his uncle’s wife, he has uncovered his uncle’s nakedness; they shall bear their sin, they shall die childless. ²¹ If a man takes his brother’s wife, it is impurity; he has uncovered his brother’s nakedness, they shall be childless.

²² “You shall therefore keep all my statutes and all my ordinances, and do them; that the land where I am bringing you to dwell may not vomit you out.