Wisdom along the Way: Finding God's Will
J. I. Packer
"....(T)he desire to know God's guidance is a sign of spiritual health. Healthy believers want to please God.....
But now, second, let it be said that the fear of spiritual ruin through mistaking God's guidance is a sign of unthinking unbelief.
In saying this I have a particular fear in mind....It may be stated as follows: God's plan for your life is like an itinerary drawn up for you as if by a travel agent. As long as you are in the right place at the right time to board each plane or train or bus or boat, all is well. But the moment you miss one of these preplanned connections, the itinerary is ruined. A new one may then be devised, but it can only ever be second-best compared with the original perfect plan.
The assumption is that God lacks either the will or the wisdom or both to get you back on track: therefore a substandard spiritual life is all that is open to you now, and though you may not actually be on the scrap-heap, losing your soul, you are certainly on the shelf, having forfeited much of your usefulness. Your one mistake thus sentences you to live and serve God as a second rate Christian forever....
If God uses the following paragraphs to relax some of the painful anxieties about guidance that Christians currently feel, I shall be overjoyed. When muscles are hurting, relaxation is the first step towards a cure, and the same is true of guidance worries...."