“Since the Reformation, mystery has always been difficult for Protestants. Paul Lim’s erudite book demonstrates just how challenging it was when, during the English seventeenth century, Christianity’s central mystery of the Trinity moved to the center of political, cultural, and religious controversies. With enormous theological and scriptural learning, Lim lets us see these controversies from the inside. In doing so, he decisively shows the threat that anti-Trinitarianism and (more surprisingly) the defense of Christian orthodoxy together posed to both throne and altar.”