1 Corinthians 7:10-12

American Standard Version

¹⁰ But unto the married I give charge, yea not I, but the Lord, That the wife depart not from her husband ¹¹ (but should she depart, let her remain unmarried, or else be reconciled to her husband); and that the husband leave not his wife. ¹² But to the rest say I, not the Lord: If any brother hath an unbelieving wife, and she is content to dwell with him, let him not leave her.