Acts XX. 17-21
“And from Miletus he sent to Ephesus, and called the elders of the Church. And when they had come to him, he said unto them, You know, from the first day that I came into Asia, after what manner I have been with you at all seasons, serving the Lord with all humility of mind, and with many tears, and temptations, which befell me by the lying in wait of the Jews: and how I kept back nothing that was profitable unto you, but have showed you, and have taught you publicly, and from house to house, testifying both to the Jews, and also to the Greeks, repentance toward God and faith toward our Lord Jesus Christ.”
Source: Homilies on Acts (New Advent)