2 Corinthians 10:14
“For we stretch not ourselves overmuch, as though we reached not unto you: for we came even as far as unto you in preaching the Gospel of Christ.”
Not simply 'we came,' but, 'we announced, we preached, we persuaded, we succeeded.' For it is probable that they having merely come to the disciples of the Apostles, ascribed the whole to themselves, from their bare presence among them. 'But not so we: nor can any one say that we were not able to come as far as to you, and that we stretched our boasting as far as to you in words only; for we also preached the word to you.'
Source: Homilies on Second Corinthians (New Advent)