Moses ended up at

 The mountain on the back side bottom the mountain because he killed a man in defense of a Israelite 

If that's the

 Mountain 

Who put the 10 commandments

 And put the 10 commandments in the Ark of the covenant at Mt Horeb

Who was put in

 And Ark as a baby 

Moses

 Who wrote the first five books of the Bible 

But

 Wait 

He was is God on page one

 By page two He was is the Lord God 

 

 

So the old testament

 Is like God. The holy spirit. The Lord which is God 

But Jesus

 Wasn't born until the new testament