Testament: L'histoire de Moïse

I guess I just don't understand. Is the Bible not good enough that you have to make up scriptures that were never written. I'm sure there are other things to be critical of, but I just can't get over the hole taking one of the most important scriptures in the Bible and completely altering it. God says " I am, but I am and what I will be"???? Really? My goodness. What nonsense is this? Someone please explain to me why we need to throw that in there. And no point in this rambling coherent thought did the Bible God saying "and what I will be" - It's It's arguably one of the most important verses in the Bible and you don't alter those words even if you don't believe it ever happened. If you have any understanding of theology, it's completely completely wrong. God does not change. Again, it's OK if you don't believe it, but don't alter the story. God is not who will be. In the Bible, it says "I Am that I Am" this cronyism is painful. Artistic liberties may have their limits, but this is too much.