In this chapter the apostle, I. Blames them for their indulgence in the case of the incestuous person, and orders him to be excommunicated, and delivered to Satan, 1 Cor. 5:1-6. II. He exhorts them to Christian purity, by purging out the old leaven, 1 Cor. 5:7, 8. And, III. Directs them to shun even the common conversation of Christians who were guilty of any notorious and flagitious wickedness, 1 Cor. 5:9-13.