Acts 20:17-20 (NIV)
17 From Miletus, Paul sent to Ephesus for the elders of the church. 18 When they arrived, he said to them: “You know how I lived the whole time I was with you, from the first day I came into the province of Asia. 19 I served the Lord with great humility and with tears and in the midst of severe testing by the plots of my Jewish opponents. 20 You know that I have not hesitated to preach anything that would be helpful to you but have taught you publicly and from house to house.