Moses
Leviticus 20:21ESV·traditional attribution

If a man takes his brother’s wife, it is impurity. He has uncovered his brother’s nakedness; they shall be childless.

Matthew Henry Presbyterian @wholebiblehenry

Sins against the seventh commandment are here ordered to be severely punished. These are sins which, of all others, fools are most apt to make a mock at; but God would teach those the heinousness of the guilt by the extremity of the punishment that would not otherwise be taught it. I. Lying with another man's wife was made a capital crime.

Commenting on Leviticus 20:10-21

John Gill Reformed Baptist @doctorgill

And if a man shall take his brother's wife,.... To his wife, whether in his life, as the Targum of Jonathan adds, or whether after his death, unless when there is no issue, then he was obliged to it by another law, Deu 25:5; which is now ceased, and the law in Lev 18:16; here referred to, stands clear of all exceptions: it is an...

Geneva Bible Notes Reformed @genevanotes

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. (h) Read .