The ship was attached to a cluster of Covenant ships that engaged UNSC forces in space-borne ship-to-ship combat. During the battle, Devotion was requested to cover Sacred Promise's dead zone. Twenty minutes away from taking position, Devotion was unable to prevent Sacred Promise from being hit again and subsequently crashed into a nearby moon, causing its further destruction.
- ↑ Sacred Promise was mentioned in the Transmissions as sending a taunting message to the UNSC Pillar of Autumn. Thus, it may have been part of the Covenant's Fleet of Particular Justice during the Battle of Reach. Since Devotion was with the Sacred Promise, it can be assumed that it is part of the same Fleet.