What is "Sinners in Hands of an Angry God" about?
This is a famous sermon by Jonathan Edwards, a preacher of the Great Awakening in Colonial America.
In the sermon, Edwards is telling his listeners how bad they and all people are. He tells them how much God is angry at them and how much they deserve God's anger. He says that God looks at them like some "loathsome insect" and that God would really like to throw them down into the torments of Hell.
Edwards tells listeners that it is only God's mercy that keeps them out of Hell and that there is nothing they can do to actually deserve this mercy. But he encourages them to repent of their sins and act in the ways God wants as sort of a sign to God that they want to deserve his mercy (even if they can't actually deserve it).