1 Corinthians 7:12

7:12 To the rest I say – I, not the Lord – if a brother has a wife who is not a believer and she is happy to live with him, he should not divorce her.

1 Corinthians 7:28

7:28 But if you marry, you have not sinned. And if a virgin marries, she has not sinned. But those who marry will face difficult circumstances, and I am trying to spare you such problems.

1 Corinthians 7:36

7:36 If anyone thinks he is acting inappropriately toward his virgin, if she is past the bloom of youth and it seems necessary, he should do what he wishes; he does not sin. Let them marry.