1 Corinthians 7:2-5

ISV(i) 2 Because sexual immorality is so rampant, every man should have his own wife, and every woman should have her own husband.
3 A husband should fulfill his obligation to his wife, and a wife should do the same for her husband. 4 A wife does not have authority over her own body, but her husband does. In the same way, a husband doesn’t have authority over his own body, but his wife does. 5 Do not withhold yourselves from each other unless you agree to do so just for a set time, in order to devote yourselves to prayer. Then you should come together again so that Satan does not tempt you through your lack of self-control.