Iron Maiden’s latest song and video have several references from the Bible, one of which was mentioned by Dickinson in the teaser when he cited Belshazzar’s Feast. Belshazzar was a Babylonian crown prince, and the feast he hosted appears in the Bible’s Book of Daniel. The passage reads, “Belshazzar the king made a great feast for a thousand of his lords, and drank wine in the presence of the thousand,” per Bible Gateway.

The feast was a celebration of the First Temple’s destruction, but it was halted when a hand appeared to write a message on the wall. “The fingers of a man’s hand appeared and wrote opposite the lampstand on the plaster of the wall of the king’s palace,” says the passage. Per Ultimate Classic Rock, the writing on the wall told of Belshazzar’s impending death because of his blasphemous behavior and the kingdom’s changing of hands.

The phrase “writing on the wall” is used to mean that something dreadful is about to happen. That may be what the song means, but the accompanying video also shows a new hope after destruction.