Deuteronomy 21:11

Forgive, LORD, your people Israel, whom you have redeemed, and don’t allow innocent blood among your people Israel.” The blood shall be forgiven them.

So you shall put away the innocent blood from among you, when you shall do that which is right in the LORD’s eyes.

When you go out to battle against your enemies, and the LORD your God delivers them into your hands and you carry them away captive,

then you shall bring her home to your house. She shall shave her head and trim her nails.

She shall take off the clothing of her captivity, and shall remain in your house, and bewail her father and her mother a full month. After that you shall go in to her and be her husband, and she shall be your wife.

It shall be, if you have no delight in her, then you shall let her go where she desires; but you shall not sell her at all for money. You shall not deal with her as a slave, because you have humbled her.