Acts 22:7

I fell to the ground, and heard a voice pronounce these words, "Saul, Saul, why persecutest thou me?"

to this he will reply, I declare unto you, your not doing this for one of the least of these, is the same thing as not doing it for me.

the governor said, why, what mischief has he done? but they cried out the more, let him be crucified.

who was before a blasphemer, and a violent persecutor; but I obtained mercy, because I acted thro' ignorance in incrudelity.

Treasury of Scripture Knowledge

And I fell unto the ground, and heard a voice saying unto me, Saul, Saul, why persecutest thou me?

and when the disciples heard it, they fell on their face, and were in a terrible fright.