Yet, as Satan discovered in Job's case, when Satan does his worst, God achieves His best. Satan wanted a shot at Job to tear down God, but all he accomplished was to honor God all the more in Job's heart. What a joyful reality this is! This is the end of all spiritual resistance against God - God's glory. The glory of God shines through all the more richly.
Yes, we are warned by Paul in Ephesians 6:10-12 that we fight against spiritual entities, and this should cause us both to prepare our hearts in serious contemplation and prayer for the fight, and also to put on the armor of God by God's grace. But the victory is complete already; Christ has won the battle. He stands as KING of kings and LORD of lords. Christians are more than conquerors in and through Christ.
So, as Christians:
1. Let us not overemphasize the enemy and his power.
2. Let us not neglect to recognize the seriousness of sin and Satan's power in sin.
3. Let us seek to use the means God has provided for our spiritual health and service (Bible study, prayer, worship, biblical preaching, fellowship with believers, and confession of sin).
4. Let us seek to live in the light of Jesus' victory all along the journey of life.