3 The husband should give to his wife her conjugal rights, and likewise the wife to her husband. 4 For the wife does not have authority over her own body, but the husband does; likewise the husband does not have authority over his own body, but the wife does. 5 Do not deprive one another except perhaps by agreement for a set time, to devote yourselves to prayer, and then come together again, so that Satan may not tempt you because of your lack of self-control. 6 This I say by way of concession, not of command.
Matthew Henry's Commentary on 1 Corinthians 7:3-6
Commentary on 1 Corinthians 7:1-9
(Read 1 Corinthians 7:1-9)
The apostle tells the Corinthians that it was good, in that juncture of time, for Christians to keep themselves single. Yet he says that marriage, and the comforts of that state, are settled by Divine wisdom. Though none may break the law of God, yet that perfect rule leaves men at liberty to serve him in the way most suited to their powers and circumstances, of which others often are very unfit judges. All must determine for themselves, seeking counsel from God how they ought to act.