1 Corinthians 7:11-13 KJV

11 But and if she depart , let her remain unmarried, or be reconciled to her husband: and let not the husband put away his wife.
12 But to the rest speak I, not the Lord: If any brother hath a wife that believeth not, and she be pleased to dwell with him, let him not put her away .
13 And the woman which hath an husband that believeth not, and if he be pleased to dwell with her, let her not leave him.