John 8:2-9

but early the next morning he was back again at the Temple. A crowd soon gathered, and he sat down and taught them. As he was speaking, the teachers of religious law and the Pharisees brought a woman who had been caught in the act of adultery. They put her in front of the crowd. “Teacher,” they said to Jesus, “this woman was caught in the act of adultery. The law of Moses says to stone her. What do you say?” They were trying to trap him into saying something they could use against him, but Jesus stooped down and wrote in the dust with his finger. They kept demanding an answer, so he stood up again and said, “All right, but let the one who has never sinned throw the first stone!” Then he stooped down again and wrote in the dust. When the accusers heard this, they slipped away one by one, beginning with the oldest, until only Jesus was left in the middle of the crowd with the woman.