Isaiah 45:7

7. I form the light, and… create evil Zoroastrianism the Magian religion held God to be one and omnipotent, but he was derived from the light principle. The God Jehovah here assumes priority to and creatorship of light. He claims also to be no rival with Ahriman, the evil deity of the East. God himself rejects dualism absolutely. He is the one sole sovereign. “Evil,” as it exists in the world, is the result, not of God’s direct creation, but of actualized possibility likely to occur in beings free to choose the right or the wrong way; such freedom as is essential to moral responsibility. Jehovah lays down his eternal protest against the old Zend or Persian religion.