One of the most meaningful times in my life was attending Petra concerts. I loved their music and they were a blast in concert. I could be in the worst mood but listening to a Petra and Greg Volz singing “Praise Ye the Lord” or “Stand Up for Jesus” (NOT the hymn mind you) would bring me out of the worst funk. The last concert tour with Greg Volz was in 1985, the Capture in Time and Space Tour. The closing song, “It is Finished” is one of my favorites. To my knowledge it was never released on any other album. Here’s a very nice youtube video to the song. I can’t bring myself to watch the “live” version with John Schlitt.