Which one of the Mosaic laws is not the same as Moses wrote?
All of them, the books traditionally being said to have been written by Moses simply were not. What we have today is the combination of four different sources.
However, getting to what I believe you are referring to, Moses never listed 600+ laws. As seen above, they were written by four sources. Moses ended dying very early on in the Hebrew work. The majority of the Old Testament has nothing to do with Moses writing, as he was dead.
So instead, we have a couple dozen books, written at very different times, that would form some what of our Old Testament. However, different groups still held different books to be part of their important scripture. We see it even today, such as the extra books in the Catholic Bible. Farther back, there were even more books that were considered scripture. For instance, we can just look at the works found in the Dead Sea scrolls.
So yes, what I said previously, that the Hebrew scriptures that are being referenced, and the Old Testament are not the same thing.
Armed with what knowledge that Jesus was illiterate?
What eye witness said that?
Why does an eye witness be needed? If that is a stipulation, you might as well through out all of your Gospels, as they were not done by eye witnesses. At best, they are second hand accounts. Then, your argument is void, as it wasn't a first hand account that said that Jesus read scripture, meaning there is no argument.
However though, as having eye witnesses are not important in this case, we can know that Jesus is illiterate by doing an anthropological study of the time in which he came. I believe I have already explained that.
Yes, even the Bible was written on fragile papyrus.
The wax boards in the first century were for every day writing use.
Not meant to be permanent. Some are in Museums.
Yes, the important manuscripts such as the oldest papyrus of John is the Rylands 457 p52 from 125 AD(CE) and Bodmer 14,15 p 75 from 175 AD(CE)
I really do not know where you are going with this. The wax boards were not for every day use. They were used by the literate (which was a small group) as notebooks. They were not used by the peasantry, as they would be no use. And they were not in the homes of most people, as they would be no use.
Why is it a threat that Jesus couldn't read? Does it matter? I believe it doesn't. Most people couldn't back then, as it was not needed. Why else would Paul write his letters that way they were, in order to be read to a group of people?
People didn't have much to read. It was expensive to obtain books, as they had to copied by professionals, word by word. It wasn't an easy task copying books or manuscripts. Because of that, they were not wide spread, and someone like Jesus, who was a lowly peasant, would not have been able to afford one. Plus, they would have been too busy trying to survive.