KJV - But if the unbelieving depart, let him depart. A brother or a sister is not under bondage in such cases: but God hath called us to peace.
ASV - Yet if the unbelieving departeth, let him depart: the brother or the sister is not under bondage in such `cases': but God hath called us in peace.
BBE - But if the one who is not a Christian has a desire to go away, let it be so: the brother or the sister in such a position is not forced to do one thing or the other: but it is God's pleasure that we may be at peace with one another.
WEB - Yet if the unbeliever departs, let there be separation. The brother or the sister is not under bondage in such cases, but God has called us in peace.
YLT - And, if the unbelieving doth separate himself -- let him separate himself: the brother or the sister is not under servitude in such `cases', and in peace hath God called us;