John 8:1-7

but Jesus went unto the mount of Olives. And early in the morning he came again into the temple, and all the people came unto him; and he sat down, and taught them. And the scribes and the Pharisees bring a woman taken in adultery; and having set her in the midst, they say unto him, Teacher, this woman hath been taken in adultery, in the very act. Now in the law Moses commanded us to stone such: what then sayest thou of her? And this they said, trying him, that they might have whereof to accuse him. But Jesus stooped down, and with his finger wrote on the ground. But when they continued asking him, he lifted up himself, and said unto them, He that is without sin among you, let him first cast a stone at her.