These verses tell us that we have the same place as Jesus does in the pecking order of the universe! God has given us a place on the throne through Jesus. Whom then shall I fear? In Jesus name we have the ability to do the very same miracles that the apostles did. The only difference is that they knew it AND believed it. Here in America we would say that it's some demonic force or a fluke. What would happen if WE lived in a way that showed we believed this. To speak truth into peoples lives, We are to live as children of light Paul says later on in his letter. If we really believe that God has granted us power over ALL the universe through Christ then we should live like it! Demons can't resist us if we believe and call on the name of God. We are not, however, supposed to walk around like we are super man. This whole thing relies on the fact that it's not you or I producing this power, it is literally God's power coming through us. We are merely a conduit that God chose long before we chose Him. The more our identity lies in God the greater the miracles that will be brought about through us. The closer we become to Christ, by applying our armor (Ch. 5), the greater warrior we will be for God. The only weapon that we have against spritual beings is scripture and prayer. As we walk through our day today remember WHO you are in Christ. You have the same power over the authorities on earth that the apostles did via Jesus Christ.
"Whom than shall I fear..."

Ephesians 2:5-6