Key of I heard this song at CIY in Corvallis, Oregon and was very moved by it. It was sang by Bayless then, but the original is sung by Hillsong United. Hallelujah, Hallelujah, Hallelujah, Our God Reigns (x8) It can also be changed to the key of Hallelujah, Hallelujah, Hallelujah, Our God Reigns (x8)
https://lyrics.primoaccordo.net/hillsong-united/hallelujah-our-god-reigns.htm