If you’re a man considering the pastoral ministry, you’ll want to read John Newton’s words on this topic from his sermon called “The Publication of the Gospel.” To be sure, this is also helpful for those who are currently serving as a pastor. By the way, the pastoral call and ministry is not just about doctrinal knowledge! Here’s Newton:
The first lesson received and learned by those who are taught of God, is a conviction of guilt, ignorance and misery — and then they begin to learn the importance, necessity, and design of the Gospel. The man who is thus instructed, if the Lord be pleased to call him to the office of teaching others, will in due time proceed to deliver to the people, what he has himself learned; not with hesitation, uncertainty or indifference, not what he has acquired by hearsay or from books, but he has the witness in himself (I John 5:10) . His heart teaches his mouth (Proverbs 16:23). He believes, therefore he speaks. He simply and freely declares that which he himself has known and seen, and tasted of the word of life. And speaking from the fulness of his heart, with an earnestness inspired by the greatness and importance of his subject, he speaks to the heart and feelings of his hearers, and impresses a manifestation of the truth upon their minds.
That the desire of preaching this Gospel when known, if it be a right desire, must likewise be given. If a man should attempt the service, without counting the cost, or considering the consequences, he will most probably be disgusted and wearied. And if, beforehand, he seriously and properly considers what he is about to engage in, and has a due sense of his own weakness, he will tremble at the prospect, and direct his thoughts to some other employment, unless his call and support be from on high. What courage, wisdom, meekness, and zeal appear requisite, in the view of such an inquirer, to qualify a man for preaching, and continuing to preach, a doctrine so unpleasing to the world, as the doctrine of the cross has in all ages proved! What opposition, snares and difficulties, what fightings from without, what fears within , may be expected! Surely, he will be ready to shrink back, and to say, Who is sufficient for these things? But the Lord, by the constraining sense of His love, and by giving a deep impression of the worth of souls, and by exciting in the mind a dependence upon His all-sufficiency, can and does encourage those whom He calls and chooses to serve Him in the Gospel. In themselves they are quite unequal to what is before them, but they obey His voice; they trust in His promises for guidance and protection, and are not disappointed. We are therefore directed to pray that the Lord of the harvest would send, or rather (according to the force of the Greek word), thrust forth labourers into His harvest (Matthew 9:38)
Covenant Presbyterian Church (OPC)
Hammond, WI, 54015