Let him who is sinless among you cast a stone at her.

Hermes, the Egyptian, had seen those crafty enemies of his beloved Master often confounded by the wise sayings he uttered. On one occasion, they thought to get him entangled in their web. They brought before him a poor woman taken in sin and asked him to sit as a judge in the case. The great Solomon was a wise man but here was one the wisest the world had ever seen or would see—and what was his judgment? 

Let him who is sinless among you cast a stone at her. 

Hermes describes what followed in Jesus' pronouncement—

O, had you but seen how these haughty priests and rulers looked when the godlike sentence fell from the lips of Jesus. They had come into his presence, their eyes twinkling with malicious intent, sure of thrusting him into a corner, but when they heard the words of the Master, they slunk off, one after another, sheepish and confounded. That was a lesson for them, and for all. Examine yourselves and see if you can afford to cast dirt at your neighbour. That was how the Master administered justice. He would sitteth as a judge should, before he condemns, look into himself, to see if in any way he is upholding the system that has brought the criminal to the bar of judgment. Such was the kind of lessons imparted to them by our Master, and which they treasured up for future use.

Pt Perpendicular, c. 1936 | State Library of New South Wales