15. But, speaking the truth. Having already said that we ought not to be children, destitute of reason and judgment, he now enjoins us to grow up in the truth. ¹ Though we have not arrived at man's estate, we ought at least, as we have already said, to be advanced children. The truth of God ought to have such a firm hold of us, that all the contrivances and attacks of Satan shall not draw us from our course; and yet, as we have not hitherto attained full and complete strength, we must make progress until death.

He points out the design of this progress, that Christ may be the head, "that in all things he may have the pre-eminence," (Colossians 1:18,) and that in him alone we may grow in vigor or in stature. Again, we see that no man is excepted; all are enjoined to be subject, and to take their own places in the body.

What aspect then does Popery present, but that of a crooked, deformed person? Is not the whole symmetry of the church destroyed, when one man, acting in opposition to the head, refuses to be reckoned one of the members? The Papists deny this, and allege that the Pope is nothing more than a ministerial head. But such cavils do them no service. The tyranny of their idol must be acknowledged to be altogether inconsistent with that order which Paul here recommends. In a word, a healthful condition of the church requires that Christ alone "must increase," and all others "must decrease." (John 3:30.) Whatever increase we obtain must be regulated in such a manner, that we shall remain in our own place, and contribute to exalt the head.

When he bids us give heed to the truth in love, he uses the preposition in, (ejn,) like the corresponding Hebrew preposition b, (beth,) as signifying with, -- speaking the truth With love. ² If each individual, instead of attending exclusively to his own concerns, shall desire mutual intercourse, there will be agreeable and general progress. Such, the Apostle assures us, must be the nature of this harmony, that men shall not be suffered to forget the claims of truth, or, disregarding them, to frame an agreement according to their own views. This proves the wickedness of the Papists, who lay aside the word of God, and labor to force our compliance with their decisions.

16. From whom the whole body. All our increase should tend to exalt more highly the glory of Christ. This is now proved by the best possible reason. It is he who supplies all our wants, and without whose protection we cannot be safe. As the root conveys sap to the whole tree, so all the vigor which we possess must flow to us from Christ. There are three things here which deserve our attention. The first is what has now been stated. All the life or health which is diffused through the members flows from the head; so that the members occupy a subordinate rank. The second is, that, by the distribution made, the limited share of each renders the communication between all the members absolutely necessary. The third is, that, without mutual love, the health of the body cannot be maintained. Through the members, as canals, is conveyed from the head all that is necessary for the nourishment of the body. While this connection is upheld, the body is alive and healthy. Each member, too, has its own proper share, -- according to the effectual working in the measure of every part.

Lastly, he shows that by love the church is edified, -- to the edifying of itself in love. This means that no increase is advantageous, which does not bear a just proportion to the whole body. That man is mistaken who desires his own separate growth. If a leg or arm should grow to a prodigious size, or the mouth be more fully distended, would the undue enlargement of those parts be otherwise than injurious to the whole frame? In like manner, if we wish to be considered members of Christ, let no man be anything for himself, but let us all be whatever we are for the benefit of each other. This is accomplished by love; and where it does not reign, there is no "edification," but an absolute scattering of the church.