The word for preaching in the New Testament (kērussō) means "to herald." Heralding is different from teaching, as John Piper explains, though it has teaching in it. Expounding 2 Timothy 4:2, he demonstrates what it means:
This excerpt begins at the 44:50 mark of this week's sermon.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
