Thomas Brooks emphasizes that a preacher's life must reflect their doctrine, asserting that an ignorant, profane, and soul-flattering clergy is a grave danger to society. He warns that such clergy enrich hell rather than uplift the gospel, sacrificing truth for personal gain. Brooks calls for pastors to preach and live in a manner that embodies the teachings of Jesus Christ, urging them to be sincere, powerful, and exemplary in their ministry. He stresses that without genuine preaching, the people will fall into wickedness and face spiritual peril. Ultimately, he challenges ministers to either embody the spirit of Christ or cease to claim the title of His ministers.