Done right, theological education is about sharpening.
Or to change the metaphor, it’s about your footwork. It’s about your swing. It’s unnatural. It’s not always like praxis. We concentrate on these things now in order that they flow naturally, unconsciously, later.
Training evanglists in libraries and lectures full of just Christians is no odder than training doctors with books and lectures full of other healthy students.
If you want to be a rocket scientist, start by learning mathematics on planet Earth.
(Variations of the chop-sharpen quotation are often attributed to Abraham Lincoln, but Lincoln scholars have yet to find a source.)