The apostle Paul admonishes the Corinthian Church for not deploying church discipline. Paul states to excommunicate the brother who was sleeping with his father's wife. Rahter than adressing the sin properly, the Corinthians were boasting of themselves because of their tolerance for the sinner.

Scriptural references : 1st Corinthians 5 : 1-5, Leviticus 18:29-30, Leviticus 20:11, Luke 18:9-14, Matthew 7:1-3, Matthew 18:15-17, 1 Timothy 5:20, Galatians 6:1, Matthew 18:18-20