Acts 22:7

"I fell to the ground, and heard a voice saying to me, "'Saul! Saul! why are you persecuting me?'

"But he will reply, 'In solemn truth I tell you that inasmuch as you did not do it unto one of these least, you did not do it unto me.'

But Pilate said, "Why, what evil has he done?" But they kept shouting the more fiercely, "Let him be crucified!"

although I had formerly been a blasphemer and a persecutor and a doer of outrage. But I obtained mercy because I acted ignorantly in unbelief.

Treasury of Scripture Knowledge

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

When the disciples heard this, they fell on their faces and were terrified.