Wikipedia
Mark of the Beast is an album released by the band Manilla Road in 2002. The album was originally recorded in 1981, and was intended to be the band's second album. The results were unsatisfactory and so it was scrapped in favor of writing for the album Metal. After half of the scrapped songs existed for 20 years as a bootleg called Dreams of Eschaton (which would also have been the original title in 1981), Monster Records cleaned up the master tapes and reissued this album in its entirety under this name. The cover is taken from a drawing by Jim Fitzpatrick.
Usage examples of "mark of the beast".
You think I'd want to teach people how to apply the mark of the beast?
Those who had taken the mark of the beast ran for their lives, shoving the people of God out of the way, as they took cover in the caves.