"If he didn't have the Bible he'd have nothing to say"

Tim Challies reflects on the Desiring God Conference. I don't quote this to exalt John Piper, but because it really challenges me about my preaching:

"When Piper preaches he seems to do little more than bridge one Bible verse to the next, building to a deeply biblical conclusion. With some preachers you begin to feel that they could get along just fine without the Bible, but with Piper you feel that if he didn't have the Bible he'd have nothing to say."