John Wycliffe and in his sermons, but also in a series of sharp tracts and polemical productions in Latin and English (of which those issued in his later years have been collected as "Polemical Writings"). In the 1380 "Objections to Friars", he calls monks the pests of society, enemies of religion, and patrons and promoters of every crime. He directed his strongest criticism against the friars, whose preaching he considered neither scriptural nor sincere, but motivated by "temporal gain". While others were content to seek the reform of particular errors and abuses, Wycliffe sought nothing less than the extinction of the institution
John Wycliffe "Of Antichrist", remained uncompleted. While he was saying Mass in the parish church on Holy Innocents' Day, 28 December 1384, he suffered a stroke, and died as the year ended. Wycliffe was 64 years old. The Anti-Wycliffite Statute of 1401 extended persecution to Wycliffe's remaining followers. The "Constitutions of Oxford" of 1408 aimed to reclaim authority in all ecclesiastical matters, and specifically named John Wycliffe as it banned certain writings, and noted that translation of Scripture into English by unlicensed laity was a crime punishable by charges of heresy. The Council of Constance declared Wycliffe a heretic on 4 May