Then Jesus told them that He had given them power so that nothing could hurt them, but they were not to rejoice in that. What they were to rejoice in was the fact that their names were written in heaven. That statement from Jesus still holds true today. While it is great to be able to cast out devils and heal the sick, the greatest miracle of all is still the salvation of our souls. To have our names written in the Lamb's book of life. Remember, the wrath of God will be eventually outpoured upon this earth.
What do you rejoice in today? Is your life secure with Jesus? Have you invited Him into your heart? Are you living for Him everyday? If you are, wonderful. If you're not, then bow your head right now and ask Jesus to forgive you of your sins and start now to live for Him.