The Apostle Paul
2 Corinthians 7:14ESV·traditional attribution

For whatever boasts I made to him about you, I was not put to shame. But just as everything we said to you was true, so also our boasting before Titus has proved true.

John Calvin Reformed @genevareformer

14. But if I have boasted any thing to him. He shows indirectly, how friendly a disposition he had always exercised towards the Corinthians, and with what sincerity and kindness he had judged of them; for at the very time that they seemed to be unworthy of commendation, he still promised much that was honorable on their behalf.

Matthew Henry Presbyterian @wholebiblehenry

In these verses the apostle endeavours to comfort the Corinthians, upon whom his admonitions had had such good effect. And in order thereto, 1. He tells them he had a good design in his former epistle, which might be thought severe, Co2 7:12.

Commenting on 2 Corinthians 7:12-16

John Gill Reformed Baptist @doctorgill

For if I have boasted anything to him of you,.... As of their faith in Christ, of their liberality to the saints, their affection for him, and obedience to him as children to a father: I am not ashamed; since these all appeared to be true; as he must have been had they been otherwise: but as we spake all things to you in truth...