Moses
Deuteronomy 21:14ESV·traditional attribution

But if you no longer delight in her, you shall let her go where she wants. But you shall not sell her for money, nor shall you treat her as a slave, since you have humiliated her.

John Calvin Reformed @genevareformer

14. And it shall be, if thou have no delight in her. I have been compelled to separate this sentence from the foregoing context which I have explained elsewhere; Vide vol. 2, p. 70. for Moses there gave instructions how a captive woman was to be taken to wife if her beauty attracted a Jewish husband.

Matthew Henry Presbyterian @wholebiblehenry

By this law a soldier is allowed to marry his captive if he pleased. For the hardness of their hearts Moses gave them this permission, lest, if they had not had liberty given them to marry such, they should have taken liberty to defile themselves with them, and by such wickedness the camp would have been troubled.

Commenting on Deuteronomy 21:10-14

John Gill Reformed Baptist @doctorgill

And it shall be, if thou have no delight in her;.... Either some time after marriage: then thou shalt let her go whither she will; by a bill of divorce, as the Targum of Jonathan, who understands it in this sense, and as the connection of the words seems to require; or else before marriage, at the month's end, or any time before, that if...