1 Corinthians 7:15

11 But if she does, she must remain unmarried or else be reconciled to her husband. And a husband must not divorce his wife.

12 To the rest I say this (I, not the Lord): If a brother has an unbelieving wife and she is willing to live with him, he must not divorce her.

13 And if a woman has an unbelieving husband and he is willing to live with her, she must not divorce him.

14 For the unbelieving husband is sanctified through his believing wife, and the unbelieving wife is sanctified through her believing husband. Otherwise your children would be unclean, but now they are holy.

15 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.

16 How do you know, wife, whether you will save your husband? Or how do you know, husband, whether you will save your wife?

17 Regardless, each one should lead the life that the Lord has assigned to him and to which God has called him. This is what I prescribe in all the churches.

18 Was a man already circumcised when he was called? He should not become uncircumcised. Was a man still uncircumcised when called? He should not be circumcised.

19 Circumcision is nothing and uncircumcision is nothing. Keeping God’s commandments is what counts.

Read all of 1 Corinthians 7