This cap is from 5x01 "Sympathy For The Devil". Click to see the full-sized caps.
This is an old cap of a blend of Lilith (w/her white eyes) on the left and an image of the devil on the right. I think that was from one of the paintings in the Green Room when Dean was talking to Zachariah in 4x22.
Ugh. Not feeling too great. I think it's a combination of things: PMSing, a long week, and not eating enough on Thursday. Bleh. Hopefully a good night's sleep will help.