  Barna is his book "the power of vision" suggests that like tradition, fear can be a vision killer. He writes: Grasping and implementing God’s vision can be a frightening prospect. As mentioned earlier, vision requires change.
Change means breaking out of the comfort zone, doing new things or operating in areas in which we lack a track record of success or substantial levels of selfconfidence. Change can be scary. Moving in new directions or attempting new methods of ministry is risky. Risk raises the possibility of failure, and none of us want to fail, especially in ministry. Sometimes we are overcome by fear because we have failed in the past and dare not reach for the stars again. Sometimes we dwell on our past failures or our sense of limitation, we then allow the fear of failure to restrict our universe of opportunities to those that are safe. By focusing on our failings, we miss out on our potential. We also experience fear in situations that we cannot control completely. Few Christians, leaders or not, arrive at a point where they totally release the reins of their lives and allow God to rule every moment of every day. We often lack faith the size of a mustard seed. In its place, we assert our authority over our destiny. Consequently, we are paralyzed by fear, limited in our ability to forge new trails for God’s glory.
Vision replaces fear with energy and hope. It dismisses unbelief and replaces it with peace and assurance. Vision raises questions, but it does not raise nagging doubts. If you are beset by fear about the future or fear about the vision He has entrusted to you, recognize that fear for what it is : lack of faith in God’s ability to work through you for His purposes. Pray through the fear. Abdicate control of your ministry to Him. Believe that He can do what He desires to do.
I remember the time I was involved in selling Emamnuel Bible College in Birkenhead. Many of my congregation had attended the college as students or been staff members and therefore you can imagine it was a tough time for me and the Church. I longed that something would remain on the site- that it would provide an ongoing work in the community - perhaps a "safe house" of some sort for young people who cannot live at home (this was a ministry Elaine and I were already involved in within our own home). In the dust of the empty college building I found a piece of card (which I still have today in my office) on which was written the following words from Revelation 4:1 "Come up here and I will show you what must take place after this" 
