GOD'S WORD® Translation
But if the unbelieving partners leave, let them go. Under these circumstances a Christian man or Christian woman is not bound [by a marriage vow]. God has called you to live in peace.

American Standard Version
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.

Berean Study Bible
But if the unbeliever leaves, let him go. The believing brother or sister is not bound in such cases. God has called you to live in peace.

Douay-Rheims Bible
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.

English Revised Version
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.

King James Bible
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.

World English Bible
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.

Young's Literal Translation
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;

1 Corinthians 7:15 Additional Translations ...