MOSES : THE LAWGIVER
Exodus Old and New: A Biblical Theology of Redemption (Essential Studies in Biblical Theology Book 2)
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Jethro/Reuel is a [cohen], a “priest” acting on behalf of the local Elohim, and therefore he is skilled in governing. He passes on to his son-inlaw all the necessary information to make Israel a nation (Exodus 18:13 ff):