“Thou, therefore, which teachest another, teachest thou not thyself?” is the scriptural rebuke for neglecting this duty. When the preacher delivers the message of God, he should never separate himself from his audience as if he were not addressed. He needs the communications of grace just as much as his congregation does. His own experience of wants, of sins, of trials and of blessings should be wrought into his discourses. His own faults should be kept in view, and rebuked as sharply as those of his audience. Diligently should he listen for the voice of God as addressed to his own particular case, and then reiterate that voice from the sacred desk. This rule, given by another, should ever be his guide: “In your preparations for the pulpit endeavor to derive from the subject on which you are about to preach that spiritual benefit you wish your hearers to receive.”
– T. Murphy, Pastoral Theology, p. 79.