Galatians 4:
12 Brethren, I beseech you, be as I am; for I am as ye are: ye have not injured me at all.
13 Ye know how through infirmity of the flesh I preached the gospel unto you at the first.
14 And my temptation which was in my flesh ye despised not, nor rejected; but received me as an angel of God, even as Christ Jesus.
15 Where is then the blessedness ye spake of? for I bear you record, that, if it had been possible, ye would have plucked out your own eyes, and have given them to me.
16 Am I therefore become your enemy, because I tell you the truth?
17 They zealously affect you, but not well; yea, they would exclude you, that ye might affect them.
18 But it is good to be zealously affected always in a good thing, and not only when I am present with you.
Gal.4:12-18