Jamieson, Fausset & Brown, on 1Cor 7:15

“But if the unbeliever depart, let him depart. For a brother or sister is not under servitude in such cases. But God hath called us in peace.”

“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 Christian calling is one that tends to "peace" (Rom 12:18), not quarrelling; therefore the believer should not ordinarily depart from the unbelieving consort (Co1 7:12-14), on the one hand; and on the other, in the exceptional case of the unbeliever desiring to depart, the believer is not bound to force the other party to stay in a state of continual discord (Mat 5:32). Better still it would be not to enter into such unequal alliances at all (Co1 7:40; Co2 6:14).”

Imported from an open dataset — not yet checked against the printed edition.