The wife’s body does not belong to her alone but also to her husband. In the same way, the husband’s body does not belong to him alone but also to his wife. Do not deprive each other except by mutual consent and for a time, so that you may devote yourselves to prayer. Then come together again so that Satan will not tempt you because of your lack of self-control. —1 Corinthians 7:4-5.
In 1 Corinthians 6:19-20, Paul told us that our bodies were not our own, but that Christ bought us at a price and that we should glorify God with our bodies. Once again, in chapter 7, Paul reminds us that when we marry, our body is not our own. It belongs to our spouse. We are to use our bodies to bless, please, and bring fulfillment to our marriage partner. It is not our job to make sure they bless us, but our job is to make sure we bless our husband or wife. Such mutual self-giving and sacrificial love are crucial to healthy marriages. Without such loving sacrifice, we cannot please God or bless our spouse.