The devil wants us to SIN, to deny who we are. He wants us discouraged, unbelieving, depressed, cold, hard, unyielding to God. Satan tempts us and tries to draw us away from who we are in Christ. So we see here the strength of the devil over lost souls and the strength of the devil over those who are found in Christ. But as Jesus comes on the scene, we see the Kingdom of God breaking out like never before.
Evil is confronted with a greater power.
Jesus is one stronger than the enemy is. Here is a greater power, the power of Jesus Christ. Jesus' strength is far greater. Read the book of Revelation and see who is ultimately victorious. So secondly, we see the Power of the Kingdom to Release Those In Darkness.