Relative Holiness

Compare and contrast the relative holiness!

First,

Whichever one of you has committed no sin may throw the first stone at her. Where are they? Is there no one left to condemn you? Well, then, I do not condemn you either. Go, but do not sin again.

Now, this second example, which is six centuries "more advanced"...

Sahi Muslim, Book 017, 4206
There came to him (the Holy Prophet) a woman from Ghamid and said: Allah's Messenger, I have committed adultery, so purify me. He (the Holy Prophet) turned her away. On the following day she said: Allah's Messenger, Why do you turn me away? Perhaps, you turn me away as you turned away Ma'iz. By Allah, I have become pregnant. He said: Well, if you insist upon it, then go away until you give birth to (the child). When she was delivered she came with the child (wrapped) in a rag and said: Here is the child whom I have given birth to. He said: Go away and suckle him until you wean him. When she had weaned him, she came to him (the Holy Prophet) with the child who was holding a piece of bread in his hand. She said: Allah's Apostle, here is he as I have weaned him and he eats food. He (the Holy Prophet) entrusted the child to one of the Muslims and then pronounced punishment.

And she was put in a ditch up to her chest and he commanded people and they stoned her. Khalid b Walid came forward with a stone which he flung at her head and there spurted blood on the face of Khalid and so he abused her...Then giving command regarding her, he (The Holy Prophet) prayed over her and she was buried.

...Just like they still do today, following the prophet's Holy teachings!