Acts 26:15

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

Matthew 25:40

And the king will answer and say to them, Truly do I say to you, Inasmuch as ye did it to one of the least of these my brethren, ye did it to me.

Matthew 25:45

Then will he answer them, saying, Truly do I say to you, Inasmuch as ye did it not to one of the least of these, ye did it not to me.

John 15:20-21

Remember what I said to you, A servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my words, they will keep yours also.

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 will answer and say to them, Truly do I say to you, Inasmuch as ye did it to one of the least of these my brethren, ye did it to me.
John 15:20
Remember what I said to you, A servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my words, they will keep yours also.