First created by the Space Marine Artificer Antioch, a Holy Orb of Antioch is an individually-crafted, custom grenade empowered with the holy wrath of the Emperor and filled in equal measure with high explosives and sacred unguents that burn the faithless with their purity. Holy Orbs of Antioch are lethal weapons against the impure and wicked servants of the Ruinous Powers of Chaos and the daemons of the Warp. These grenades are most commonly used by the Space Marines of the Black Templars Chapter.
The weapon is based on the humourous "Holy Hand Grenade" used by the questing knights in the classic British comedy film Monty Python's Quest for the Holy Grail.
- Warhammer 40,000: Wargear (2nd Edition)