Why Moses?
The Pentateuch has details that would be used by an eyewitness with first hand experience. The informationis descriptive and specific.
The author of Genesis and Exodus uses a higher number of Egyptian words than any other OldTestament book.
The author of Exodus, Leviticus, Numbers, and Deuteronomy, describes a desert atmosphere and lifestyle.
The Pentateuch does not reveal much familiarity about the land of Canaan.
Only Moses, who was born, raised and educated in Egypt, and did not enter the Promised Land, was qualifiedto be the eyewitness and author of the Pentateuch. No less than 13 inspired authors and Jesus attest to this.