The Corinthian church is rebuked for its divisions, immaturity, and sinful behaviors, and is instructed to be united in their faith and to glorify God with their bodies. Paul emphasizes the importance of humility, love, and selflessness, and reminds the church that they are the temple of God and should not deceive themselves with worldly wisdom. He also defends his authority as an apostle and explains that he has chosen not to accept support from the church in order to avoid hindering the gospel. The church is instructed on proper behavior in worship, the use of spiritual gifts, and the importance of charity and edifying one another.