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 8:6
8:6 yet for us there is one God, the Father, from whom are all things and for whom we live, and one Lord, Jesus Christ, through whom are all things and through whom we live.