“And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth. Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost” (Matt. 28:18; KJV). In Luke 10:19 the apostle records that Jesus gave us power over all the power of the enemy (satan). Again, in Matthew 10:1,8, we read that Jesus gave us power to cast out evil spirits and to heal the sick. The Greek word for power, used in our examples above, is exousia, which means authority. Jesus has given us authority over all the works of darkness; let that sink in!
Because of his death and resurrection Jesus has all authority in heaven and earth. Jesus utterly defeated satan and all his minions; he stripped them of all power and authority (Col 2:15). As Christians, Christ dwells in us (John 17:23) and we share in his authority.
The Bible also tells us that the devil is beneath the feet of Jesus (Eph. 1:20-23) and again, because of our relationship with Christ, the devil is under our feet too. No wonder the Bible says: “greater is he that is in you, then he that is in the world” (1 John 4:4).
Make sure you go and use the power that God has given you today to share the gospel and undo the works of the devil; at work, at school, at home, or wherever you find yourself. If God has given you power, he will show you how and when to use it.