Sinners in the Hands of an Angry God was preached by Edwards. It is by far one of the best sermons ever preached. If you are reading it for the first or the fiftieth time it should be a blessing to you.
http://www.ccel.org/e/edwards/sermons/sinners.html
I love that sermon. From a better time, a better era, a time when the Spirit moved mightily in the hearts of people to produce true revival in the Great Awakening, a time when God was pleased to call many back to Himself through true repentence, true sorrow, and receive true and lasting redemption.