The Apostle Paul
2 Corinthians 1:14ESV·traditional attribution

just as you did partially understand us—that on the day of our Lord Jesus you will boast of us as we will boast of you.

John Calvin Reformed @genevareformer

14. For we are your glorying. We have briefly adverted to the manner in which it is allowable for saints to glory in God’s benefits — when they repose themselves in God alone, and have no other object of aim.

Matthew Henry Presbyterian @wholebiblehenry

The apostle in these verses attests their integrity by the sincerity of their conversation. This he does not in a way of boasting and vain-glory, but as one good reason for desiring the help of prayer, as well as for the more comfortably trusting in God (Heb 13:18), and for the necessary vindication of himself from the aspersions of some persons at Corinth, who reproached...

Commenting on 2 Corinthians 1:12-14

John Gill Reformed Baptist @doctorgill

As also you have acknowledged us in part,.... This may refer either to the thing known and acknowledged, namely, the integrity of the apostle's conversation, and others; which though they did not know thoroughly and perfectly, yet did in part, and that so far as that they might acquit them from the charge brought against them; or to the persons who knew this, as that...