Cardale's first series of sermons after the opening was circulated in manuscript, and ultimately published; he had now abandoned his Calvinism.
One of these was John Rawlins, M.A., an Anglican of Catholic sympathies, who among other preferments held the perpetual curacy of Badsey, two miles from Evesham.
Though not popular as a preacher, Cardale as a writer on Socinian theology proved influential, and the manuscript of his most important publication, ‘True Doctrine,’ was revised by Nathaniel Lardner.
On 28 February 1775 he put the finishing touch to a work, retired to rest, and died in his sleep before dawn on Wednesday, 1 March.
Cardale married Sarah Suffield, a lady of some property, three years his senior, who died without issue about 1767.
Robert Brook Aspland remarks that it was not till after her death that he began to publish those of his works which were considered heretical.