Paul's sole focus in his ministry was on preaching "Jesus Christ, and Him crucified." When ministering in Corinth, Paul determined to focus exclusively on this central message rather than on philosophy, rhetoric, or other topics. He did so for several reasons - it was the message from God, it was best suited to converting sinners and bringing comfort, and it promoted holiness. The crucifixion of Jesus revealed God's attributes of righteousness and mercy and provided pardon for sin, motivating obedience. Paul made "Christ crucified" his single overriding theme in emulation of Christ and to fulfill his duty as a preacher of the gospel.