In these verses observe,

I.The apostle refuses to justify himself, or to act by such rules as the false apostles did, Co2 10:12. He plainly intimates that they took a wrong method to commend themselves, in measuring themselves by themselves, and comparing themselves among themselves, which was not wise. They were pleased, and did pride themselves, in their own attainments, and never considered those who far exceeded them in gifts and graces, in power and authority; and this made them haughty and insolent. Note, If we would compare ourselves with others who excel us, this would be a good method to keep us humble; we should be pleased and thankful for what we have of gifts or graces, but never pride ourselves therein, as if there were none to be compared with us or that did excel us. The apostle would not be of the number of such vain men: let us resolve that we will not make ourselves of that number.

II.He fixes a better rule for his conduct, namely, not to boast of things without his measure, which was the measure God had distributed to him, Co2 10:13. His meaning is, either that he would not boast of more gifts or graces, or power and authority, than God had really bestowed on him; or, rather, that he would not act beyond his commission as to persons or things, nor go beyond the line prescribed to him, which he plainly intimates the false apostles did, while they boasted of other men's labors. The apostle's resolution was to keep within his own province, and that compass of ground which God had marked out for him. His commission as an apostle was to preach the gospel every where, especially among the Gentiles, and he was not confined to one place; yet he observed the directions of Providence, and the Holy Spirit, as to the particular places whither he went or where he did abide.

III.He acted according to this rule: We stretch not ourselves beyond our measure, Co2 10:14. And, particularly, he acted according to this rule in preaching at Corinth, and in the exercise of his apostolical authority there; for he came thither by divine direction, and there he converted many to Christianity; and, therefore, in boasting of them as his charge, he acted not contrary to his rule, he boasted not of other men's labours, Co2 10:15.

IV.He declares his success in observing this rule. His hope was that their faith was increased, and that others beyond them, even in the remoter parts of Achaia, would embrace the gospel also; and in all this he exceeded not his commission, nor acted in another man's line.

V.He seems to check himself in this matter, as if he had spoken too much in his own praise. The unjust accusations and reflections of his enemies had made it needful he should justify himself; and the wrong methods they took gave him good occasion to mention the better rule he had observed: yet he is afraid of boasting, or taking any praise to himself, and therefore he mentions two things which ought to be regarded: - 1. He that glorieth should glory in the Lord, Co2 10:17. If we are able to fix good rules for our conduct, or act by them, or have any good success in so doing, the praise and glory of all are owing unto God. Ministers in particular must be careful not to glory in their performances, but must give God the glory of their work, and the success thereof. 2. Not he that commendeth himself is approved, but he whom the Lord commendeth, Co2 10:18. Of all flattery, self-flattery is the worst, and self-applause is seldom any better than self-flattery and self-deceit. At the best, self-commendation is no praise, and it is oftentimes as foolish and vain as it is proud; therefore, instead of praising or commending ourselves, we should strive to approve ourselves to God, and his approbation will be our best commendation.

He that glorieth, let him glory in the Lord - Instead of boasting or exulting even in your own success in preaching the Gospel, as none can be successful without the especial blessing of God, let God who gave the blessing have the glory. Even the genuine apostle, who has his commission immediately from God himself, takes no praise to himself from the prosperity of his work, but gives it all to God. How little cause then have your uncommissioned men to boast, to whom God has assigned no province, and who only boast in another man's line of things made ready to their hand!

But he that glorieth, let him glory in the Lord. Not in himself, nor in his outward circumstances of life, or inward endowments of mind; not in his natural or acquired parts; not in his wisdom, knowledge, learning, and eloquence; nor in his own righteousness, labours, and services, much less in other men's labours; nor in his own sense of himself; nor in the opinion and popular applause of others; but in the Lord Jesus Christ, as the author and donor of all gifts, natural and spiritual; in his wisdom, righteousness, sanctification, and redemption; and in his judgment and approbation of men and things, which sense the following words direct unto.

2 Corinthians 10:18

glorieth--Translate, to accord with Co2 10:16, "boasteth." In contrast to his opponents' practice of boasting in another's line or sphere, Paul declares the only true boasting is in the Lord (Co1 1:31; Co1 15:10).