1 Corinthians 5:1

Church Discipline

5:1 It is actually reported that sexual immorality exists among you, the kind of immorality that is not permitted even among the Gentiles, so that someone is cohabiting with his father’s wife.

1 Corinthians 7:29

7:29 And I say this, brothers and sisters: The time is short. So then those who have wives should be as those who have none,