Haven't I commanded you? Be strong and of good courage; don't be afraid, neither be dismayed: for Yahweh your God is with you 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.