Jesus speaks of a Sign for the End Times to St. Faustina

Jesus told St. Faustina  

"Write this:  

before I come as a the Just Judge, 

I am coming first as the King of Mercy. 

 Before the day of justice arrives, 

there will be given to people a sign in the heavens of this sort:

All light in the heavens  

will be extinguished, 

and there will be a great darkness 

over the whole earth.  

Then the sign of the cross 

will be seen in the sky, 

and from the openings

where the hands and the feet 
of the Savior 

were nailed will come forth 

great lights which will light up the earth 

for a period of time.  

This will take place shortly before the last day.

Crucified Christ in the clouds

Diary of St. Faustina Kowalska Notebook one, number 83