u/SomeLengthiness

Trying to get to grips with NMM. It’s hard. To keep my sanity I came up with some lore for this guy. In my head he’s like a character from BlackAdder

Brother-Exalted Malach Voss of the XVII Legion is a fanatic, in a legion of fanatics.
He does not particularly care which false god is being worshipped. He simply believes all non-Chaos faiths are a personal insult directed at him specifically.
Imperial shrines, cathedrals, Aeldari spirit-temples, Ork idols, Tau motivational pamphlets, it makes no difference. If someone kneels before it, Voss will eventually arrive in a screaming wall of crimson ceramite to burn it with promethium, beat it flat, and bless the survivors to death with his sanctified power mace.
Other Word Bearers find him... difficult.
Dark Apostles have repeatedly attempted to explain that the Long War is about the glory of Chaos, not “winning arguments about religion,” but Voss remains unconvinced. During the Sack of Gathis VIII he reportedly abandoned a daemonic summoning because he spotted a Tech Priest carrying an instructional manual three kilometres away.
The Ultramarine helmet upon his trophy rack is said to belong to Captain Helion of the 3rd Company, who made the mistake of calling Voss “a bit intense” before being set on fire mid-sentence.  

Brother-Exalted Malach Voss of the XVII Legion is a fanatic, in a legion of fanatics.
He does not particularly care which false god is being worshipped. He simply believes all non-Chaos faiths are a personal insult directed at him specifically.
Imperial shrines, cathedrals, Aeldari spirit-temples, Ork idols, Tau motivational pamphlets, it makes no difference. If someone kneels before it, Voss will eventually arrive in a screaming wall of crimson ceramite to burn it with promethium, beat it flat, and bless the survivors to death with his sanctified power mace.
Other Word Bearers find him... difficult.
Dark Apostles have repeatedly attempted to explain that the Long War is about the glory of Chaos, not “winning arguments about religion,” but Voss remains unconvinced. During the Sack of Gathis VIII he reportedly abandoned a daemonic summoning because he spotted a Tech Priest carrying an instructional manual three kilometres away.
The Ultramarine helmet upon his trophy rack is said to belong to Captain Helion of the 3rd Company, who made the mistake of calling Voss “a bit intense” before being set on fire mid-sentence.  

Still trying to get to grips with NMM. Learning is hard. To keep my spirits up, I like to come up with lore. I pictured this guy like an antagonist from a Black Adder episode.

Brother-Exalted Malach Voss of the XVII Legion is a fanatic, in a legion of fanatics.
He does not particularly care which false god is being worshipped. He simply believes all non-Chaos faiths are a personal insult directed at him specifically.
Imperial shrines, cathedrals, Aeldari spirit-temples, Ork idols, Tau motivational pamphlets, it makes no difference. If someone kneels before it, Voss will eventually arrive in a screaming wall of crimson ceramite to burn it with promethium, beat it flat, and bless the survivors to death with his sanctified power mace.
Other Word Bearers find him... difficult.
Dark Apostles have repeatedly attempted to explain that the Long War is about the glory of Chaos, not “winning arguments about religion,” but Voss remains unconvinced. During the Sack of Gathis VIII he reportedly abandoned a daemonic summoning because he spotted a Tech Priest carrying an instructional manual three kilometres away.
The Ultramarine helmet upon his trophy rack is said to belong to Captain Helion of the 3rd Company, who made the mistake of calling Voss “a bit intense” before being set on fire mid-sentence.