Unseen Power

Unseen Power is the thirteenth studio album of the Christian rock band, Petra. It was released in November 1991.

The album retains a driving edge while veering away from the more commercial pop-metal sound of their previous efforts. Bob Hartman has stated that he and the producers intentionally chose to move in directions they were not instinctively inclined to go.

Track listing
All songs written by Bob Hartman, except where noted.
 * 1) "Destiny" – 4:31
 * 2) "Who's on the Lord's Side" (words and music by Rev. Timothy Wright) – 3:54
 * 3) "Ready, Willing and Able" – 4:14
 * 4) "Hand on My Heart" (music by John Elefante, Hartman) – 4:26
 * 5) "I Need to Hear from You" – 4:04
 * 6) "Dance" (music by Elefante) – 3:46
 * 7) "Secret Weapon" (music by Hartman, Elefante) – 4:01
 * 8) "Sight Unseen" – 3:58
 * 9) "Hey World" – 3:52
 * 10) "In the Likeness of You" (words and music by John Lawry) – 4:51

Awards

 * Won Grammy Award for Best Rock Gospel Album in 1992.
 * Won Dove Award for Rock Recorded Song ("Destiny") in 1993.

Personnel
Petra
 * Bob Hartman – guitars, arrangements
 * John Schlitt – vocals
 * John Lawry – keyboards, arrangements
 * Ronny Cates – bass
 * Louie Weaver – drums

Additional backing vocals
 * Doug Beiden
 * Ron Gollner
 * Olivia McClurkin
 * Alfred McCrary
 * Howard McCrary
 * Perry Morgan
 * Tony Palacios
 * Rob Rock
 * Jamie Rowe
 * Alfie Silas
 * Rose Stone
 * Sara Tennison

Production
 * John Elefante – producer, arrangements, engineer at Pakaderm Studios, Los Alamitos, California, Pakaderm West, Los Alamitos, California
 * Dino Elefante – producer, arrangements, engineer
 * Doug Beiden – engineer, mix assistant
 * J.R. McNeely – engineer, mix assistant
 * Neil Kernon – mixing
 * Chris Bellman – mastering at Bernie Grundman Mastering, Hollywood, California
 * Lynn Keesecker – A&R direction
 * Loren Balman – art direction
 * Ed Goble – art direction
 * Patrick Pollei – art direction, design
 * Steven Fryer – design
 * Michael Goldenberg – design
 * Amy Linde – art production coordinator
 * Jeff Katz – band and individual photos
 * Neill Whitlock – cover concept photography
 * Helena Occhipinti – hair
 * Margaret Kimura – make-up
 * Keiki Mingus – stylist