Don A. Carson tells of this story about prayer in his book Call to Spiritual Reformation:
Two years ago at a major North American seminary, fifty students who were offering themselves for overseas ministry during the summer holidays were carefully interviewed so that their suitability could be assessed. Only three of these fifty- 6 percent!- could testify to regular quiet times, times of reading the Scriptures, of devoting themselves to prayer. It would be painful and embarrassing to uncover the prayer life of many thousands of evangelical pastors.
