Galatians 4:13-15

13On the contrary, you know that it was because of a physical illness that I [remained and] preached the gospel to you the first time;

14and even though my physical condition was a trial to you, you did not regard it with contempt, or scorn and reject me; but you received me as an angel of God, even as Christ Jesus Himself.

15What then has become of that sense of blessing and the joy that you once had [from your salvation and your relationship with Christ]? For I testify of you that, if possible, you would have torn out your own eyes and given them to me [to replace mine].