Acts 26:15

And I said, Who art thou, Lord? And He said, I am Jesus, whom thou persecutest.

Matthew 25:40

And the king replying will say unto them, Verily I declare unto you, inasmuch as ye did it to one of the lest of these my brethren, ye did it to me.

Matthew 25:45

Then will He reply to them, saying, Verily I tell you, inasmuch as ye did it not to one of the lest of these, ye did it not to me.

John 15:20-21

Remember what I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you: if they have observed my word, they will also observe yours.

Treasury of Scripture Knowledge

Summary

And I said, Who art thou, Lord? And he said, I am Jesus whom thou persecutest.

Bible References

I am

Matthew 25:40
And the king replying will say unto them, Verily I declare unto you, inasmuch as ye did it to one of the lest of these my brethren, ye did it to me.
John 15:20
Remember what I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you: if they have observed my word, they will also observe yours.