William Whiston

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William Whiston was an English clergyman, mathematician, and theologian who succeeded Isaac Newton in the Lucasian chair at Cambridge and then lost it, expelled from the university in 1710 for openly rejecting the doctrine of the Trinity. His name survives today chiefly on the spine of a book he did not write: the translation of Josephus he published in 1737 remained the standard English Josephus for more than two centuries, and still circulates.

Born in Leicestershire and ordained in the Church of England, Whiston moved in the first rank of early-Enlightenment natural philosophy. His early New Theory of the Earth (1696) tried to account for the Creation, the Flood, and the final conflagration as the natural effects of a passing comet — physics enlisted to vindicate scripture, a project Newton himself read with interest. On Newton’s recommendation he took the Lucasian professorship in 1702. He was, by the standards of his moment, an establishment figure: a working mathematician who believed the book of nature and the book of revelation could be made to agree.

What broke that career was theology. Whiston had come to hold, on his own reading of the early Church, that the orthodox doctrine of the Trinity was a fourth-century corruption and that the truer faith was the Arianism the councils had condemned — the teaching that the Son is subordinate to, and not coeternal with, the Father. He said so in print. The conviction cost him his chair, his position in the Church, and a formal prosecution for heresy that dragged on without final verdict. He spent the rest of a long life outside the institutions, lecturing, publishing, and arguing his case in coffee-houses and pamphlets, certain he was restoring primitive Christianity rather than inventing a sect.

He was also a committed millenarian, expecting a literal fulfillment of biblical prophecy and willing to attach dates to it — a habit that drew ridicule even from sympathisers, and that has shaped his later reputation as a brilliant man given to enthusiasm. The judgment is not quite fair to him. The same readiness to follow an argument past the bounds of respectable opinion produced both the prophetic speculation and the genuine scholarship, and his contemporaries did not always find it easy to separate the two.

His afterlife is curiously split. The historical Whiston is a case study in how much heterodoxy the age of Newton could and could not tolerate: a man undone not by bad science but by an unfashionable reading of the creeds. The popular Whiston is simply the translator whose Josephus sat on Protestant bookshelves for generations, carrying the Jewish historian’s account of the Second Temple and its destruction into ordinary English households long after the controversy that defined his life had been forgotten. The translation outlasted the heresy, which is not the legacy he would have chosen.

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