Mark 9:23 (NIV)
Everything is possible for him who believes.
Are we insulting God by thinking that God can't do what needs to be done in our lives? It's not that God is unable to do something, the problem is that we are limiting His power in our lives through our unbelief. The Lord Jesus was essentially saying that we could all that He did if we had His kind of faith. A saint can only receive that kind of resolute faith from the Holy Spirit. May we all walk in the power of the Holy Spirit.