This spell is used by priest to mark the faithful who have
a important purpose for the church, such as paladins, priest,
diplomats, or any ally. It places a tattoo of a holy symbol that
can only bee seen by someone with the same holy symbol. It is
normaly placed where it is easily viewed, forehead, hand, etc.
This allows the user to identify the faithful. If the caster ever does something knowningly against the church or its tenants the mark will appear bright red and glow to those who bear the tattoo, and the recipient will no longer be able to see those with the ark.
Someone with the red mark may have it removed by going to a priest of his god and having a atonement cast amd rectifying his errors.
The focus for this spell is a holy symbol.