Don't know whether he did. There is a lot of skepticism about whether he did or not, due to variants in the text (and he certainly didn't write all of it, since he died before it finished.) But Moses is not God.
Is John God? You did see that I said God/Yeshua did not write the bible right?
I'm sure he said a lot of it, to some varying degree.
Have you ever heard of Oral tradition? Jews didn't write things down until long after they happened. The Gospels were not written down until almost 50 years after Yeshua left earth. What makes you think the Apostles remembered every single detail they heard and observed over the years, 50 years later? Can you remember what you ate for dinner last December 15th? I didn't say the Bible isn't reliable, but it requires more than a literal passing glance of an English translation to grasp its meanings.
And why do you keep attacking my icon? Messianic Judaism is not Conservative Christianity. I do not have to hold fundamentalist/conservative views to be a Messianic. Yeshua was not conservative, the Pharisees were.