Exodus 21:10 If he take him another wife; her food, her raiment, and her duty of marriage, shall he not diminish. 10 I MC VC

Deuteronomy 21:15 If a man have two wives, one beloved, and another hated, and they have born him children, both the beloved and the hated; and if the firstborn son be hers that was hated: 10 I MC VC