"At any rate, Judaism, while insisting upon the unity of God and His government of the world, recognizes alongside of God no principle of evil in creation. God has no counterpart either in the powers of darkness, as the deities of Egypt and Babylon had, or in the power of evil, such as Ahriman in the Zoroastrian religion is, whose demoniacal nature was transferred by the Gnostic and Christian systems to Satan. In the Jewish Scriptures Satan has his place among the angels of heaven, and is bound to execute the will of God, his master."
January 1, 1970
https://en.wikiquote.org/wiki/Kaufmann_Kohler