[1] The group stood out in the burgeoning Los Angeles metal music scene due to their unconventional futuristic body-armor stage outfits, whose concept Cawley derived from the biblical passage in Ephesians 6 regarding "putting on the full armor of God".

In late 1984, Isham departed, and the trio of Cawley, Bach & Hart recorded an EP of six Cawley-penned tunes called Rock in Victory.

With Palacios, there surfaced a bootleg EP, Voyager in 1987—which were really just pre-production demos recorded in the backroom of an Orange County music store.

This release featured a melodic metal sound in a similar vein as Stryper or Van Halen[1] and was followed by extensive touring through the United States and Japan.

[1] The response to the album was overwhelming and the video for the song "Power of Love" was included in the MTV's Headbangers Ball rotation.

The album was recorded in producer's (John & Dino Elefante) garage and featured a stripped down, blues based sound.

During this time, Bach temporarily stepped down as a full-time touring member and the band released a self-produced tribute to Stryper called The Yellow and Black Attack Is Back!.

In April 2006, producer Dino Elefante told Jesus Freak Hideout that Guardian would release Triple Five, a compilation with some new songs on the Selectric Records imprint that he had partnered with Bach.

In October 2006, Guardian made a rare live appearance at the ARPA Awards in Mexico City where they performed a medley of some of their Spanish hits.

In February 2007, Guardian joined fellow Christian-metal veterans, Bride and Tourniquet onstage in Germany at the Legends of Rock festival.

In 2009, the band released House of Guardian—a live video documentary—as well as a complementary website: houseofguardian.com Guardian again appeared in Europe at the Legends of Rock festival in Germany in 2010 with Perrenot solely handling all guitar duties.

In 2019, the core Guardian line up of Rowe, Palacios, Bach & Ney reunited for a live performance and interviews for the TV show, Music Moments and Memories, which aired on the TBN network.

Bach currently works for Apple Inc., overseeing Business Development for key markets in the southeast U.S.[citation needed] Guitarist Tony Palacios mixes and produces records for a diverse blend of both CCM and mainstream acts.

Former keyboardist Brent Jeffers later played keyboards with Stryper and has toured the world over with a diverse group of artists ranging from Natalie Cole to Tim McGraw.