John Wycliffe appears wasted and physically weak. Thorpe says Wycliffe was of unblemished walk in life, and regarded affectionately by people of rank, who often consorted with him, took down his sayings, and clung to him. "I indeed clove to none closer than to him, the wisest and most blessed of all men whom I have ever found." Thomas Netter highly esteemed John Kynyngham in that he "so bravely offered himself to the biting speech of the heretic and to words that stung as being without the religion of Christ". But this example of Netter is not well chosen, since the tone
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