Belief in Moshe was based on the national experience at Sinai, where the entire people heard God speak to Moshe directly.
Question 2
Why are miracles insufficient proof of prophecy?
Belief based on miracles "has a blemish" — one can always suspect magic or trickery.
Question 3
What if a future prophet performs miracles and says to change Torah?
Since belief in Moshe rests on direct national experience (not miracles), no future prophet's miracles can override it.
Question 4
How many adults witnessed the revelation at Sinai?
The Rambam emphasizes that 600,000 adults heard God speak at Sinai — making it a mass testimony that cannot be fabricated.
Question 5
What was the purpose of Moshe's miracles in Egypt and the desert?
The Rambam says Moshe's miracles served practical needs: splitting the sea to escape, manna for food, etc. They were NOT performed as proofs of his prophetic authority.