Jonathan Edwards towered over his contemporaries-a man over six feet tall and a figure of theological stature-but the reasons for his power have been a matter of dispute. Edwards on the Will offers a persuasive explanation. In 1753, after seven years of personal trials, which included dismissal from his Northampton church, Edwards submitted a treatise, Freedom of the Will, to Boston publishers. Its impact on Puritan society was profound. He had refused to be trapped either by a new Arminian scheme that seemed to make God impotent or by a Hobbesian natural determinism that made morality an...