An Evil Spirit From the LORD

Does God bring all the evil things of the world? Was the Spirit in the chosen of the Old Testament? Who does the Anointed One refer to? Was Saul ever a child of God? What did the Spirit do to Saul? Do the unconverted speak the Truth? How are all the descriptions of David applicable to Christ? Why did God purpose that Saul hear about David? How does God hide His anointed in plain site, Moses in Pharaoh's own family for 40 years and David as Saul's armor-bearer?