15 On the other hand, if the unbelieving spouse walks out, you've got to let him or her go. You don't have to hold on desperately. God has called us to make the best of it, as peacefully as we can. 16 You never know, wife: The way you handle this might bring your husband not only back to you but to God. You never know, husband: The way you handle this might bring your wife not only back to you but to God.
Matthew Henry's Commentary on 1 Corinthians 7:15-16
Commentary on 1 Corinthians 7:10-16
(Read 1 Corinthians 7:10-16)
Man and wife must not separate for any other cause than what Christ allows. Divorce, at that time, was very common among both Jews and Gentiles, on very slight pretexts. Marriage is a Divine institution; and is an engagement for life, by God's appointment. We are bound, as much as in us lies, to live peaceably with all men, Romans 12:18, therefore to promote the peace and comfort of our nearest relatives, though unbelievers. It should be the labour and study of those who are married, to make each other as easy and happy as possible. Should a Christian desert a husband or wife, when there is opportunity to give the greatest proof of love? Stay, and labour heartily for the conversion of thy relative. In every state and relation the Lord has called us to peace; and every thing should be done to promote harmony, as far as truth and holiness will permit.