A prayer for doubt...

O God, you guide the humble and light the darkness of those who seek you:

Grant us, in all our doubts and uncertainties, the grace to ask what you would have us do -

that the Spirit of wisdom may lead us, and that in your light we may see light,

and in your straight path may not stumble; through Jesus Christ our Lord.

Amen.(Adapted from the Book of Common Prayer - 58)

Additional Resources

Mere Christianity by C.S. Lewis
God in the Dock by C.S. Lewis
Orthodoxy by G.K. Chesterton
The Problem of Pain by C.S. Lewis