Yeah it's hard for some people to wrap their head around the fact that the God of the Old Testament is the Almighty and yet was also a slaughtered lamb at the same time. I have great hope you will see it one day.
What I don't understand is that you seem to think so highly of the man named Moses. Is he a myth? Is the God that he served a myth? He is the same God as now. After all God said to Moses...
Exodus 3:14
God said to Moses, “I am who I am.” And he said, “Say this to the people of Israel, ‘I am has sent me to you.’”
God did not say Moses was I AM.
Colossians 1:16
For by him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through him and for him.
Revelation 1:8
“I am the Alpha and the Omega,” says the Lord God, “who is and who was and who is to come, the Almighty.”
John 1:18
No one has ever seen God; the only God, who is at the Father's side, he has made him known.
1 Corinthians 8:6
Yet for us there is one God, the Father, from whom are all things and for whom we exist, and one Lord, Jesus Christ, through whom are all things and through whom we exist.