The Apostle Paul pointed out there is gross immorality that is tolerated in the Corinthian Church. Fornication (sexual immorality) in the sight of God is likened to idolatry. There is a man within the congregation that has laid with his father’s wife, that is, his step-mother. And this sin has not been dealt with. The offender continues to live in sin. Moral purity, he reminded them, is what brings glory and honour to God. The exercise of great spiritual gifts without moral purity is a mockery. We serve God in holiness. This is true worship and service. Sin must be repented of and the offender disciplined.