For we are glad, when we are weak, and ye are strong: and this also we wish, even your perfection. For we are glad, when we are weak - It will give me indescribable pleasure that I should still appear to be poor, despicable, and destitute of this extraordinary power with which God has clothed me, so that you be strong in all the gifts and graces of the Holy Spirit.
And this also we wish, even your perfection - We cannot be satisfied that persons, with such eminent endowments, and who have once received the truth as it is in Jesus, should be deficient in any of the graces that constitute the mind of Christ; such as brotherly love, charity, harmony, unity, and order. I have given the above paraphrase to this verse, because of the last term καταρτισιν, which we render perfection. Καταρτισις, from κατα, intensive, andαρτιζω, to fit or adapt, signifies the reducing of a dislocated limb to its proper place; and hence, as Beza says on this passage: "The apostle's meaning is, that whereas the members of the Church were all, as it were, dislocated and out of joint, they should be joined together in love; and they should endeavor to make perfect what was amiss among them, either in faith or morals."
It is a metaphor, also, taken from a building; the several stones and timbers being all put in their proper places and situations, so that the whole building might be complete, and be a proper habitation for the owner. The same figure, though not in the same terms, the apostle uses, Ephesians 2:20-22.
The perfection or rejointing which the apostle wishes is that which refers to the state of the Church in its fellowship, unity, order, etc. And perfection in the soul is the same, in reference to it, as perfection in the Church is to its order and unity. The perfection or rejointing of the soul implies its purification, and placing every faculty, passion, and appetite in its proper place; so that the original order, harmony, unity, and purity of the soul may be restored; and the whole builded up to be a habitation of God through the Spirit, Ephesians 2:22.