But God has put this Word into the mouth of men in order that it may be communicated to other men. When one person is struck by the Word, he speaks it to others. God has willed that we should seek and find His living Word in the witness of a brother, in the mouth of man. Therefore, the Christian needs another Christian who speaks God’s word to him.
Dietrich Bonhoeffer, Life Together
21 Days of Prayer and Fasting 