Paul wrote his first letter to the Corinthians to address 2 main concerns: conflict within the congregation and allowing the pagan values of the Greco-Roman society to infiltrate the church
5 themes are connected with congregational conflict: church leaders, lawsuits, the Lord's Supper, spiritual gifts, and Stephanas & Apollos
7 themes are associated with cultural compromise: incest, sexual immorality, marriage, the unmarried, dining in pagan temples, head coverings, and bodily resurrection.
What connects all these subjects in the gospel. Paul applies some aspect of the gospel in dealing with teach problem.