John 8:4-9 (NIV)

and said to Jesus, “Teacher, this woman was caught in the act of adultery. ⁵ In the Law Moses commanded us to stone such women. Now what do you say?” ⁶ They were using this question as a trap, in order to have a basis for accusing him.

But Jesus bent down and started to write on the ground with his finger. ⁷ When they kept on questioning him, he straightened up and said to them, “Let any one of you who is without sin be the first to throw a stone at her.” ⁸ Again he stooped down and wrote on the ground.

⁹ At this, those who heard began to go away one at a time, the older ones first, until only Jesus was left, with the woman still standing there.