In this scripture, Paul is giving us an amazing reminder. He's relaying to us, that as followers of Christ, we have at our disposal God's mighty power and weapons, as we fight against Satan's attacks and his strongholds. God's weapons of faith, hope, love, prayers, His Word and the Holy Spirit.
To become a "Jesus Freak," we must recognize that even though our human nature may sometimes lead us down the path of unforgiveness, bitterness, spitefulness and unkindness, we must always remember that we'll never find Jesus in those places! It's in these times, that we must get on our knees and ask Jesus to forgive us and help us make better decisions.