The sabbatical is an entrenched tradition in academia. University professors, committed to the life of the mind, get them regularly every seventh year. And well they should. This life of the mind, teaching and thinking, is strenuous. The mind tires, grows stagnant, begins to repeat itself. The annual invasion of students, their curious and questioning minds strangely mingled with ignorance and sloth, constitutes a formidable challenge to a professor.

Academia exists to protect and develop knowledge, but knowledge is not a dead thing in a book. It's a living dialectic; it requires fully alive professors to maintain it. If knowledge disintegrates into clich‚ or soddens into data, intelligence is betrayed and the mind dulled. And so the schools provide for regular renewal of the professorial brain cells by providing sabbaticals.

But pastors, committed to the life of the spirit, a life at least as strenuous, if not more so, than the life of the mind, rarely get sabbaticals. I wonder why, ...