As Keble has written, the "Prophecy" posted here along with the work of Mr. Moss, does not give information for where it comes from. But on the New Advent on-line RC dictionary there *is* a citation for this prophecy along with the text.
"Ambrose Lisle Philipps in a letter to the Earl of Shrewsbury dated 28 October, 1850, in giving a sketch of English Catholic history, relates the following vision or prophecy made by St. Edward: "During the month of January, 1066, the holy King of England St. Edward the Confessor was confined to his bed by his last illness in his royal Westminster Palace. St. Aelred, Abbott of Rievaulx, in Yorkshire, relates that a short time before his happy death, this holy king was wrapt in ecstasy, when two pious Benedictine monks of Normandy, whom he had known in his youth, during his exile in that country, appeared to him, and revealed to him what was to happen to England in future centuries, and the cause of the terrible punishment.
They said: 'The extreme corruption and wickedness of the English nation has provoked the just anger of God. When malice shall have reached the fullness of its measure, God will, in His wrath, send to the English people wicked spirits, who will punish and afflict them with great severity, by separating the green tree from its parent stem the length of three furlongs. But at last this same tree, through the compassionate mercy of God, and without any national (governmental) assistance, shall return to its original root, reflourish and bear abundant fruit.'
After having heard these prophetic words, the saintly King Edward opened his eyes, returned to his senses, and the vision vanished. He immediately related all he had seen and heard to his virgin spouse, Edgitha, to Stigand, Archbishop of Canterbury, and to Harold, his successor to the throne, who were in his chamber praying around his bed." (See "Vita beati Edwardi regis et confessoris", from manuscript Selden 55 in Bodleian Library, Oxford.)http://www.newadvent.org/cathen/12473a.htm
I have broken up the paragraph to show where the prophecy starts and ends and added the words in parenthesis for clarity. Also, please note that a clear
citation is given for where this prophecy can be found: in the Bodleian LIbrary in Oxford England with the Manuscript designation clearly stated. Also, note that this passage is markedly different from the "prophecy" put out by Mr. Moss. There is no "year and a day" for example.
I do not yet have a copy of the translated Vita of St. Edward but I am working on it. (Book hunting can be a slow hobby that requires patience, especially if the prey are books that don't have large press runs.) But from my researches there are 2 "Vitae" from close to the period of St. Edward's life, that written by Aelred of Rivaulx (which is mentioned above) and an Anglo-Norman poetic one which can be viewed on the Net starting here:http://www.lib.cam.ac.uk/cgi-bin/Ee.3.59/browse
with an introduction here: http://www.lib.cam.ac.uk/MSS/Ee.3.59/introduction.htm
(Side note, this is one of the really *great* things of the Net. Things that most people will never be able to see in person are available to see on-line. I love it.)
In reading some of the Moss' work that is also linked to, he cites a biography of St. Edward by one Frank Barlow from the 20th century. I am looking into that, as it would be useful to see what sources *he* used and if that is where the "prophecy" that was first posted came from.
Citations and sources are important.
Also, more on the subject of the Anglo-Saxons and "Orthodox" may be found in the thread in this section on "Western Post-1054 Orthodoxy" that Cizinec has revived.