"Why have they “spoken smooth things” instead of wielding the sword of the Spirit? Because their own hearts were not right with God: His holy fear was not upon them. An “honest and good heart” (Luke 8:15) will cause a servant of Christ to preach what he sees to be the most essential and profitable truths of the Word, however displeasing they may be unto many of his people. He will faithfully rebuke, exhort, admonish, correct and instruct, whether his hearers like it or not." Heart Work by A.W. Pink