Calvin on Ephesians 4

"11 And he gave the apostles, the prophets, the evangelists, the pastors and teachers, 12 to equip the saints for the work of ministry, for building up the body of Christ, 13 until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood, to the measure of the stature of the fullness of Christ, 14 so that we may no longer be children, tossed to and fro by the waves and carried about by every wind of doctrine, by human cunning, by craftiness in deceitful schemes. 15 Rather, speaking the truth in love, we are to grow up in every way into him who is the head, into Christ, 16 from whom the whole body, joined and held together by every joint with which it is equipped, when each part is working properly, makes the body grow so that it builds itself up in love."
Ephesians 4:11-16

I was reading John Calvin's commentary on Ephesians and found his words on these verses to be particularly helpful. In this section's overview he says,

He [Paul] returns to explain the distribution of gifts, and illustrates at greater length what he had slightly hinted, that out of this variety arises unity in the church, as the various tones in music produce sweet melody. The meaning may be thus summed up. 'The external ministry of the word is also commended, on account of the advantages which it yields. Certain men appointed to that office, are employed in preaching the gospel. This is the arrangement by which the Lord is pleased to govern his church, to maintain its existence, and ultimately to secure its highest perfection.'

On verse 11 he comments,

The government of the church, by the preaching of the word, is first of all declared to be no human contrivance, but a most sacred ordinance of Christ. The apostles did not appoint themselves, but were chosen by Christ; and, at the present day, true pastors do not rashly thrust themselves forward by their own judgment, but are raised up by the Lord. In short, the government of the church, by the ministry of the word, is not a contrivance of men, but an appointment made by the Son of God. As his own unalterable law, it demands our assent. They who reject or despise this ministry offer insult and rebellion to Christ its Author. It is himself who gave them; for, if he does not raise them up, there will be none.

He goes on to explain in verse 12,

What is more excellent than to produce the true and complete perfection of the church? And yet this work, so admirable and divine, is here declared by the apostle to be accomplished by the external ministry of the word. That those who neglect this instrument should hope to become perfect in Christ is utter madness. Yet such are the fanatics, on the one hand, who pretend to be favored with secret revelations of the Spirit, — and proud men, on the other, who imagine that to them the private reading of the Scriptures is enough, and that they have no need of the ordinary ministry of the church.

If the edification of the church proceeds from Christ alone, he has surely a right to prescribe in what manner it shall be edified. But Paul expressly states, that, according to the command of Christ, no real union or perfection is attained, but by the outward preaching.

Finally, on verse 14 he comments on the state of being "tossed to and fro by the waves and carried about by every wind of doctrine,"

Such must be the changeable and unsteady character of all who do not rest on the foundation of God’s eternal truth. It is their just punishment for looking, not to God, but to men. Paul declares, on the other hand, that faith, which rests on the word of God, stands unshaken against all the attacks of Satan.

This section of Calvin is not only the definition of good exposition, but, more importantly, explains that this text reminds us of God's good governance of His Church by His Word. "Therefore we must pay much closer attention to what we have heard, lest we drift away from it," says the author of Hebrews. Let us listen up to the all-growing, all-maturing, all-pointing-to-Christ Word of God.