Jesus is the Son of God, (God to us in the flesh) but if you want to be confused further Jesus said "the Father and I are one, for if you have seen me you have seen the Father".........
I agree Moses did not know Jesus since He had not yet been born.....
Jesus was born on earth after Moses was born, but according to Colossians 1:15,16 Jesus was 'firstborn' in the heavens. All spirit creation and all physical creation came through God's firstborn in the heavens. The beginning of the creation by God- Rev 3:14 B. So Jesus had a pre-human existence in the heavens before Moses existed.
When Jesus prayed (John 17:11,21-23) that his followers be one as he and his Father are one Jesus was not praying they all be God. Rather Jesus and his Father are one in purpose, unity, goal, belief, etc, and by asking that his followers be one as they are one he was then asking the same for them.
John 14:28 the Father is greater than Jesus
Doesn't Exodus 33:20 say that No man can see God and live ?
Yet, people did see Jesus.