Quote of the day: tornado preaching

From T4G panel discussion:

You (John Piper) are a theological tornado in my soul... gracious devastation.
The Puritans were sometimes told in their preaching that they ripped up
consciences. ... Good preaching does the counselling for you... but sometimes
good preaching starts the counselling. It raises problems of conscience
that you haven't had before, but you should've. (Ligon Duncan)