So 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.

And again he stooped down, and wrote on the ground.

And they which heard it, being convicted by their own conscience, went out one by one, beginning at the eldest, even unto the last: and Jesus was left alone, and the woman standing in the midst. John 8:7–9

In this passage Jesus gives the requirements for being a judge, which is something for all of us to hear. We have the right to be the judge of others provided we meet the requirement. That requirement is sinlessness. May I say to you I don’t know about you, but that takes me out of the stone-throwing business.

An old Scottish commentator says that the elder ones left first because they had more sense than the younger ones. The younger ones hung around until they saw their own names come up, and then they finally caught on and left also. So there was not a person left there who could throw a stone at her except One. Only Jesus could have thrown the stone at her. All the others had tiptoed away. What hypocrites they were!  So, who are we to judge?