Some of my fresh readings just turn out now to be nitpicking. For example. I do appreciate Gary DeMar's Last Days Madness, but his footnotes have stalled any sort of progress in re-reading his book. On page 17 Gary states,
Although some people turned to superstition for security, most felt it was God's anger against wickedness of the people of that day. Wycliffe seemed to have yielded to a popular apprehension that the final judgment was approaching. He describes the "covetousness, sensuality, and fraud" of the clergy as infecting all of humanity, thus causing the chastisement under which Europe mourned.
Although the nation was shaken by the loss of life and by the fear of the unknown evil, penitence was lacking. Shortage of labor hastened economic changes and social unrest. Substitution of wages for services accelerated. Distinction between the classes became less rigid. The arts reflected the melancholy and morbid. Exaggerated forms of religious mysticism developed. Lack of educated clergy reduced the church's intellectual vigor.
I did find it curious that Christian History cautiously stated, "Wycliffe seemed to have yielded to a popular apprehension that the final judgment was approaching," while DeMar more forcefully concludes Wycliffe thought it was indeed the last days.
In the above section from Christan History, only four words are attributed to Wycliffe: "covetousness, sensuality, and fraud." Christian History does not document these four words. Doing a quick Google search, I'm very tempted to say these aren't Wycliffe's words at all, but are rather a summary statement from Robert Vaughan book, The Life and Opinions of John de Wycliffe Vol I. After describing Wycliffe's belief that the close of the 14 century would be the end of the world (after four periods of tribulation), Vaughan states:
The modern reader will probably smile at these speculations, and it is no less probable that some future race will look with equal self-complacency on many of our gravest conclusions, with regard to the future, whether relating to science, religion, or the world. It is worthy of observation, that while the writers who record the sufferings of the period under review, attribute them principally, to the vanity of the people, especially as evinced in the costly caprice of their apparel, and the general disposition to luxurious indulgence; Wycliffe traces the malady to a higher source, describing the clergy as so addicted to covetousness, sensuality, and fraud, as to have infected every portion of the community, with the same vices, and thus to have been the main cause of that chastisement, under which Europe had been called to mourn." [source]
My guess is Christian History probably lifted their Wycliffe information from Vaughn.
Unfortunately, the documentation here is likewise vague. Vaughn goes on to cite "On Prelates, C. i. iv." That source is probably this. He also cites "M.S. on the Seven Deadly Sins" which can probably be found here. But previous to the quote Vaughn also mentions Wycliffe's "The Last Age of the Church." Which source? I have no idea. I am though very tempted to say, Wycliffe was not cited at all by either DeMar, Christian History, or Robert Vaughan.