What does the Bible say about dualism?

The concept of dualism, which posits that good and evil are balanced forces at work in the universe, contradicts biblical teachings on the absolute sovereignty of God. Scripture reveals that God is in control of all events, declaring, 'I form the light and create darkness: I make peace and create evil: I, the Lord, do all these things' (Isaiah 45:7). This highlights that the devil operates only within the parameters set by God, exemplified in the book of Job, where Satan's power is limited by God's decree. Thus, dualism fails to accord with the biblical view of God's supremacy over all creation.