1 Corinthians 7:15 - Coke's Commentary on the Holy Bible

Is not under bondage, &c.— That is, says Hilary, "The Christian in this case is free to marry to another Christian." "He is free," says Photius, "to depart, because the other has dissolved the marriage." "If he depart," say Chrysostom, OEcumenius, and Theophylact, "because thou wilt not communicate with him in his infidelity, be thou divorced, or quit the yoke, &c." But it must be remembered, that the present subject refers only to marriages between Christians and those who were professedly heathens. A brother or sister, in the case above mentioned, after all due means of peace and reconciliation have been in vain attempted, (for God hath called us to peace,) is not enslaved.