What does the Bible say about the control of evil spirits?

Scripture clearly demonstrates that all spirits, whether good or evil, exist under the sovereignty of God. For instance, in the book of Job, we see that Satan needed permission from God to afflict Job. This highlights God's ultimate authority over even the most malevolent forces. Additionally, in 1 Kings 22, God allowed a lying spirit to deceive King Ahab's prophets, again illustrating that even evil spirits serve a divine purpose. Thus, we can conclude that no spirit operates outside of God's sovereign will.