Only be strong and very courageous, to observe to do according to all the law, which Moses my servant commanded you: don't turn from it to the right hand or to the left, that you may have good success wherever you go.
NEHEMIAH: In  Nehemiah 9, the people remembered the pillar of cloud by day and the pillar of fire by night in their plea for forgiveness.  Where did that memory come from?  The Pentateuch.  Furthermore, upon what law was the abolition of usury based?  It was based on the teaching of the Pentateuch.