A god sends someone to punish a servant. Totally a thing!the thousand types of large spirit
less than the gods
but who clearly are of greater rank than most humans
from those who bring sanctioned suffering
to a messenger or kights of the gods.
Consider that it is impossible to actually encounter a god, because it isnt human in any way.
Thus a god can only send an intermediary to visit a servant.
This intermediary can be an other servant, such as an angel or an other human.
Or this intermediary can be an avatar: the god manifests itself via the form of an angel or incarnates as a human.
The intermediary can have whatever stats you want, from normal human to cosmically powerful being.
If an avatar, think of it like it is a smart phone. The god isnt the smart phone itself, but you can talk and hear via the smart phone.
The most important thing is to think about what kind of relationship you want between a god and a servant. Traditionally, the god is a slavemaster and the servant is a slave, and the slavemaster can and will severely punish any disobedience. To "worship" a god, means to declare that the god is "worthy" to be your slavemaster. To "serve" a god, means to do rituals in a temple for that god. These rituals are understood to actually benefit the slavemaster, such as bringing it food, enjoyable scents, and so on.
If this lord-and-servant relationship isnt present, it isnt really a god.