Finkle: Jesus commanded all his followers to preach. (Matt 28)
Eden- He COULD have used them; they gave Mary and Joseph valuable gifts in token to the boyt who would be the Messiah. BUT, he didn't send the star.
The criteria to determine whether a book is true or not is simple; does it make ANY sense? Is there any nonsense in it? Is it in harmony with the messages of the books KNOWN to be inspired? etc