Prophecy of King Edward’s death

At the end of 1065, King Edward was hunting with Tostig Godwinson, when news came that Tostig’s earldom in Northumbria had revolted against him. Tostig was eventually replaced by Earl Morcar and was forced to flee to Flanders. Following this, in the months that led up to Christmas 1065, King Edward fell ill with grief at the loss of his favourite.
Florence of Worcester tells us “ Thereupon he [Tostig] went, accompanied by his wife, to Baldwin, earl of Flanders, and passed the winter at St. Omer.  After this, king  Edward  fell into a lingering  sickness,  but  he held  his court at London during Christmas as well as he was  able.”

According to the miracle story in Matthew Paris’s ‘The Lives of Edward the Confessor,’ King Edward’s death was prophecised by a visit from St John the Evangelist. Tostig’s expulsion is not mentioned.
see:  https://archive.org/details/livesofedwardcon00luar/page/278/mode/2up?view=theater
and the illustrations in the manuscript can be seen at the Cambridge Library website
http://cudl.lib.cam.ac.uk/view/MS-EE-00003-00059/59

The  king  was  at  the  service,
where there was dedicated  the  church
Of  Saint  John,  who  to  God  was  dear,

Firstly King Edward wished to give charity to a poor man but as he had nothing else to hand, he gave him a ring from his own finger. But the poor man was really St John.

Looks  at  his  hand,  and  remembers  
That  on  his  finger  he  had  a  cherished  ring  
Which  was  large,  royal  and  beautiful  ;  
To  the  poor  man  he  gives  it  for  the  love  
Of  Saint  John,  his  dear  lord ;  

 
Later, two palmers of English birth were in Syria where they were assisted by a mysterious old man. He claimed to be John the Evangelist and gave them a ring and a message for King Edward, and then he vanished.

You  shall  go  to  King  Edward,  
Salute  him  from  me,  
And  that  you  attempt  not  a  falsehood  
To  say,  you  shall  carry  proofs —  
A  ring,  which  he  will  know,
Which  he  gave  to  me  John,  
When  he  was  at  the  service.  
Where  my  church  was  dedicated ;

And  let  King  Edward  know  well.  
To  me  he  shall  come  before  six  months  (are  over)  
And  since  he  resembles  me.  
In  Paradise  shall  we  be  together ;  
And  that  of  this  he  may  be  confidently  assured  

King Edward, knowing that his death was coming within six months, prepared by giving away his possessions and by seeking the completion and dedication of his own church and burial place.

When  King  Edward  knew  
That  he  should  die  within  six  months,  
He  gives  largely  of  his  treasure,  
He  retains  nothing  of  gold  nor  silver.   
In  tears  is  he  and  in  prayers.  
Almsgiving  and  devotion.  
In  disciplines  and  vigils.  
So  much  that  every  one  wonders.  
But  of  one  thing  he  is  very  thoughtful ;  
Much  longs  he  while  he  is  alive  
That  his  church  should  be  dedicated,  
To  which  he  had  given  so  much  thought,
And  where  espoused  by  oath
He  was  to  Almighty  God.