Leviticus 20:21

21 “ ‘If a man marries his brother’s wife, it is an act of impurity; he has dishonored his brother. They will be childless.

Read Leviticus 20:21 Using Other Translations

And if a man shall take his brother's wife, it is an unclean thing: he hath uncovered his brother's nakedness; they shall be childless.
If a man takes his brother's wife, it is impurity. He has uncovered his brother's nakedness; they shall be childless.
“If a man marries his brother’s wife, it is an act of impurity. He has violated his brother, and the guilty couple will remain childless.