1 Corinthians 7:2-5

2But because sexual immorality is so common, each man should have sexual relations with his own wife, and each woman should have sexual relations with her own husband.

3A husband should fulfill his marital duty to his wife, and likewise a wife to her husband.

4A wife does not have the right over her own body, but her husband does. In the same way, a husband does not have the right over his own body, but his wife does.

5Do not deprive one another — except when you agree for a time, to devote yourselves to prayer. Then come together again; otherwise, Satan may tempt you because of your lack of self-control.