"Everything is for our LORD!" The followers of Apophis shouted as the markings on their bodies suddenly glowed.
The glowing tattoo of the Distorted God Apophis is not a product of human intervention. It is a mark that they are followers of the Distorted God Apophis. It can only manifest once they ingest a part of the Distorted God Apophis.
The process of manifesting this mark is also very life threatening as only half of the mortal lives that ingest a part of a god or goddess can live. The number might be big for half but only a small fraction of those that live can live normally after that. Some perish in just a few years as their bodies will reject the foreign substance of a god or goddess.