Apostol § 190

Brethren, If any man is convinced in himself that he is Christ's, let him again consider this in himself, that, just as he is Christ's, even so we are Christ's For even if I should boast somewhat more of our authority, which the Lord has given us for edification, and not for your destruction, I should not be ashamed: that I may not seem to terrify you by letters. "For his letters," they say, "are weighty and powerful, but his bodily presence is weak, and his speech contemptible." Let such a person consider this, that what we are in word by letters when we are absent, such we will also be in deed when we are present. For we dare not class ourselves or compare ourselves with those who commend themselves. But they, measuring themselves by themselves, and comparing themselves among themselves, are not wise. We, however, will not boast beyond measure, but within the limits of the measure which God appointed us — a measure which includes even you. For we are not extending ourselves beyond our measure (thus not reaching you), for it was to you that we came with the Gospel of Christ; not boasting of things beyond measure, that is, in other men's labors, but having hope, that as your faith is increased, we shall be greatly enlarged by you in our measure, to preach the Gospel in the regions beyond you, and not to boast in another man's accomplishments. For "if a man glories, let him glory in the Lord." For it is not he who commends himself that is approved, but he whom the Lord commends.