1 Corinthians 7:11

7:11 (but if she does, let her remain unmarried, or be reconciled to her husband), and a husband should not divorce his wife.

1 Corinthians 7:14-15

7:14 For the unbelieving husband is sanctified because of the wife, and the unbelieving wife because of her husband. Otherwise your children are unclean, but now they are holy. 7:15 But if the unbeliever wants a divorce, let it take place. In these circumstances the brother or sister is not bound. God has called you in peace.