
This was part of my devotion on Halloween morning. It was very appropriate and I wanted to share it. The greater part of it comes from "Experiencing God: Day-by-Day" (devotional).
Colossians 2:15 “ And having disarmed the powers and authorities, he made a public spectacle of them, triumphing over them by the cross.”
As Christians we are not called to defeat Satan. God has already done that in Christ. It is not our position to “bind” Satan. Jesus has already set limits on the extent and duration of Satan’s freedom. Satan, “our ancient foe”, was decisively and completely defeated by Christ’s sacrifice on the cross and in his resurrection. With regard to Satan, our assignment is to trust Christ for the victory that He achieved and daily resist Satan with the truth of his defeat, as Jesus did.
Satan is the Father of Lies and a master deceiver (John 8;44). If he can convince you that God has not defeated him, then you will not experience Jesus victory. You will find yourself fighting battles that Christ has already won. You will fear Satan, though he has already been utterly and humiliatingly defeated. Your responsibility is to resist Satan and He will flea from you (James 4:7). When you resist him, you are acknowledging that Jesus has defeated him and given you victory over his influence. God has provided you with spiritual armor that is more than sufficient to with stand any assault by Satan (Eph 6:10-20).
Christians can become preoccupied with battling Satan. This deceives them to invest their time and energy attempting to do something that Christ has already done for them. If Satan can divert you to wage a warfare that has already ended in surrender, he will have illuminated your effectiveness where God wants you. Fearing Satan is fearing a prisoner of war. You have no need or calling to defeat Satan; you need only to apply Christ’s victory in every area of your life and to live the victorious Christian life. As you go about sharing the gospel message with others, Satan and his forces face the reality of their defeat in each life that is claimed by the kingdom of God (Luke 10:17-20).