II.  There is an instituted ministry of the ordinances of Christ unto his Church, by such ministers and office-bearers as he hath appointed.  And the preaching of the gospel is frequently referred to as a principal part of that ministry.  We read of a ministry of the word, Acts vi. 4; a ministry received of the Lord Jesus to testify the gospel of the grace of God, Acts xx. 24; a ministry of reconciliation, 2 Cor. v. 18; and a ministry into which some are put by the Lord Christ, 1 Tim. i. 12.  This ministry is not left open to all the members of the church, in such a manner as that everyone who finds himself disposed, of supposes himself to be qualified, may engage in it as he finds opportunity; but office-bearers are appointed for it by the Lord Christ, Eph. iv. 11,12:  “And he gave some apostles, and some prophets, and some evangelists, and some pastors and teachers, for the perfecting of the saints, for the work of the ministry, and for the edifying of the body of Christ.”  Some of these officers were extraordinary and temporary; they had an extraordinary call, and were endued with miraculous powers, which are now ceased:  but the work of the ministry, and particularly the preaching of the gospel, is to continue to the end of the world, as appears from the promise given for the encouragement of those that are employed in it, Matt, xxviii. 20.  There are accordingly ordinary officers, pastors, and teachers, appointed for the continued exercise of that ministry.

To these instituted office-bearers is this ministry exclusively committed, Mark xvi., Matt, xxviii.  The gospel of Christ, in respect of the public ministry thereof by preaching, is frequently mentioned as a special and peculiar trust committed unto them, 2 Cor. v. 18-20; 1 Tim. i. 11, and vi. 20.  In all the passages of Scripture where we have any mention of a charge or commission to preach the gospel, it would be easy to show that it is directed only to persons in office; and a variety of names are given to those that are employed in a ministry of the word, all of which are expressive of their peculiar office.  They are called ministers, 1 Cor. iii. 6; officers and stewards, 1 Cor. iv. 1; ambassadors for Christ, 2 Cor. v. 20; heralds (so the word preacher signifies) and teachers, 2 Tim. i. 11.

There is no room to plead here, that though a constant ministry of the word, in a pastoral charge, belongs only to persons in office, yet all may occasionally exercise their gifts in preaching the gospel.  The word of God acknowledges no such distinction as that between a constant and an occasional ministry of the gospel.  It enjoins upon those who are called to the work of the ministry, not an occasional, but a constant exercise of that ministry; so that whether they be paid pastors, or itinerant preachers, they are not to entangle themselves with the affairs of this life, but must be devoted wholly to the work of the gospel, 1 Tim. iv. 13-16; 2 Tim. ii. 4, and iv. 2.  And because they must thus devote their time and attention to this work, the word of God also enjoins that a maintenance be given them by those to whom they exercise their ministry, 1 Cor. ix. 7-14; Gal. vi. 6; 1 Tim. v. 17.  This is a farther evidence that the ministry of the word is restricted to persons in office, and that they are to devote their time and attention to it, not entangling themselves in the prosecution of a secular business.