Deuteronomy 21:13-15

EasyEnglish Bible

¹³ She must change the clothes that she was wearing when you found her. Let her live in your house and weep for her parents for a whole month. Then you may have sex with her. You will be her husband and she will be your wife. ¹⁴ Later, you may not be pleased with her. If so, you must let her go wherever she wants. You must never sell her or make her become a slave. You must not do that, because you have made her have sex with you, as your wife.

Firstborn sons

¹⁵ A man may have two wives, but he may love only one of them. Each wife may give birth to a son. The firstborn son may be the son of the wife that he does not love.