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.
JOB: It is the God of the Pentateuch - the Creator, the Helper, the Sustainer, the Personal Intervening God, who shines in every line of Job. The source of such conceptions of God is Biblical, the Pentateuch in particular.