1 Corinthians 7:15

“But if the unbelieving depart, etc.] If the unbelieving party, man or woman, separate themselves from the believing party on account of religion, and in hatred to it, and will not live with the believer unless Christ is denied, his Gospel abjured, and his ordinances and worship relinquished: let him depart; he or she, though not without making use of all proper means to retain them; but if, after all, they will go, unless such things are complied with as are unreasonable and sinful, they are not to be held, but let go; and the deserted person may sit down contented, being not to be blamed, the fault entirely lying upon the deserter: a brother or a sister is not under bondage in such cases.…”

“if . . . depart--that is, wishes for separation. Translate, "separateth himself": offended with her Christianity, and refusing to live with her unless she renounce it. brother or a sister is not under bondage--is not bound to renounce the faith for the sake of retaining her unbelieving husband [HAMMOND]. So Deu 13:6; Mat 10:35-37; Luk 14:26. The believer does not lie under the same obligation in the case of a union with an unbeliever, as in the case of one with a believer. In the former case he is not bound not to separate, if the unbeliever separate or "depart," in the latter nothing but "fornication" justifies separation [PHOTIUS in Æcumenius]. but God hath called us to peace--Our…”

“But if the unbelieving depart - If they choose to leave you. Let him depart - You cannot prevent it, and you are to submit to it patiently, and bear it as a Christian. A brother or a sister is not under bondage ... - Many have supposed that this means that they would be at liberty to marry again when the unbelieving wife or husband had gone away; as Calvin, Grotius, Rosenmuller, etc. But this is contrary to the strain of the argument of the apostle. The sense of the expression “is not bound,” etc. is, that if they forcibly depart, the one that is left is not bound by the marriage tie to make provision for the one that departed; to do acts that might be prejudicial to religion by a violent…”

“A brother or a sister - A Christian man or woman. Is not enslaved - is at full liberty. In such cases: but God hath called us to peace - To live peaceably with them, if it be possible. 1 Corinthians 7:17”

“7:15 If the unbeliever breaks up the marriage, the believing husband or wife is free to let them go. • has called you: God’s desire is that his people live in peace, rather than in the intolerable conflict of a mixed marriage no longer desired by the non-Christian spouse.”

“A brother: Mat 12:50; Jam 2:15 but: Co1 14:33; Rom 12:18, Rom 14:19; Co2 13:11; Gal 5:22; Heb 12:14; Jam 3:17, Jam 3:18 to peace: Gr. in peace 1 Corinthians 7:16”