After you’ve preached, let it go and sleep like a Calvinist; and other reflections on preaching by Mark Driscoll.
(It’s probably worth explaining that a Calvinist understanding of Christianity is that the Christian’s standing with God is all about what God has done, not about what they do: Hence a Calvinist would sleep very well, safe in the knowledge that there’s nothing more they could be doing. Clear?)
i can see i’ll never sleep poorly again!