Nice
I like the short, clear statements, and some lines follow a nice meter already. But one thing that would greatly enhance this code would be to entirely put it into meter. For instance, the first few lines:
A Knight is sworn to valor
and evil he fears not.
He bears no witness false
his sword defends the weak
and justice he upholds.
The hungry with his wealth he feeds
etc...
In this rewritten version, every unstressed syllable is follwed by a stressed one. Read it aloud, you will notice it has a certain flow, and it is easy to imagine hundeds of knights chanting the oath together (this is called a iambic meter). In your original version, at some points the rhythm is broken by a sequence of stressed or unstressed syllables, which would make it much harder to chant it aloud.
Also, you will notice that writing this way really adds a medieval touch to the code. Furthermore, the code may improve if you try to avoid long words such as \"necessary\", and try to stick to words with three or less syllables.
