The Formation of Damnation is the tenth studio album by American thrash metal band Testament, released on April 29, 2008. It was Testament's first album since 2001's First Strike Still Deadly and their first of new material since 1999's The Gathering. It was also Testament's first release with original guitarist Alex Skolnick since 1992's The Ritual and bassist Greg Christian since 1994's Low, as well as the band's only studio album recorded with drummer Paul Bostaph, who joined Testament in 1993 but became a full-time member in 2007 before leaving the band four years later.

The Gathering is the eighth studio album by American thrash metal band Testament, released on June 8, 1999. It was the first release the band had done with Spitfire Records. Co-produced by band members, Chuck Billy and Eric Peterson, this was the first album featuring new musicians Steve DiGiorgio on bass guitar and Dave Lombardo on drums. Billy, Peterson and Lombardo, along with longtime Testament collaborator Del James, are also given composer credits on the album. It would also be the only Testament album for Lombardo, who had left the band not long after the release of The Gathering.