This book of the law shall not depart out of your mouth, but you shall meditate thereon day and night, that you may observe to do according to all that is written therein: for then you shall make your way prosperous, and then you shall have good success.
JOSHUA: We do not even get out of the first chapter until we find this clear and undeniable reference to the "Law which Moses my servant commanded."  If that is not the Law of Moses - ALL of it - the entire Pentateuch, then it is nothing at all!  We reject the arbitrary arrogance with which so-called "scholars" would try to limit this to some little fraction of the Mosaic Law.  There is no objective grounds whatever for such an obviously false maneuver.