How does Edwards's sermon "Sinners in the Hands of an Angry God" reflect Puritan religious beliefs?

had
been steeped in the Calvinist theology of the Puritans from an early age. As time went on,
however, it became clear to him, as for many brought up in the same tradition, that something of
the original spirit of Puritanism had been lost.

Like most denominations,
Calvinism had become ossified into a system of formal observances, to which many adherents paid
lip-service without feeling any kind of emotional attachment to their creed. Belief had become a
matter for the head, not for the heart. What preachers such as Edwards sought to do, then, was
to urge people to look inside...