Deuteronomy 21:13-15

Darby Translation

¹³ and she shall put the clothes of her captivity from off her, and shall abide in thy house, and bewail her father and mother a full month, and afterwards thou mayest go in unto her, and be her husband, and she shall be thy wife.

¹⁴ And it shall be, if thou have no delight in her, then thou shalt let her go according to her desire; but thou shalt in no wise sell her for money; thou shalt not treat her as a slave, because thou hast humbled her.

¹⁵ If a man have two wives, one beloved, and one hated, and they have borne him children, both the beloved and the hated, and the firstborn son be hers that was hated;