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 irritated by this encounter, and attacks upon Wycliffe began. The second and third books of his work dealing with civil government carry a sharp polemic. On 22 May 1377 Pope Gregory XI sent five copies of a bull against Wycliffe, dispatching one to the Archbishop of Canterbury, and the others to the Bishop of London, King Edward III, the Chancellor, and the university; among the enclosures were 18 theses of his, which were denounced as erroneous and dangerous to Church and State. Stephen Lahey suggests that Gregory's action against Wycliffe was an attempt to put pressure on King Edward to