10 If he takes another wife, he must not reduce the food, clothing, or marital rights of his first wife.
Exodus 21:10 Cross References - MSB
1 Corinthians 7:1-6
1 Now for the matters about which you wrote me: It is good to abstain from sexual relations.
2 But because there is so much sexual immorality, each man should have his own wife, and each woman her own husband.
3 The husband should render the affection due to his wife, and likewise the wife to her husband.
4 The wife does not have authority over her own body, but the husband. Likewise the husband does not have authority over his own body, but the wife.
5 Do not deprive each other, except by mutual consent and for a time, so you may devote yourselves to fasting and to prayer. Then come together again, so that Satan will not tempt you through your lack of self-control.
6 I say this as a concession, not as a command.