We all know that unarmed attacks are not weapons, and that abilities that reference weapons therefore do not generally apply to unarmed attacks.
But what about abilities like the Avenger class archetype's Zealous Inevitability feat? It requires that you use your deity's favored weapon, but what if said "weapon" is "fist?"
Can you not use the feat in that case? Or can you?
What about similar abilities, such as the archetype's Twin Takedown feat?
I would argue that the good faith reading is that you should be able to use "whatever is within a deity's "Favored Weapon" section of its statblock", so Zealous Inevitability should function.
However, the Twin Takedown feat specifies that you are "wielding two melee weapons, one in each hand", and nothing in the Avenger archetype alters that requirement. We already know that all unarmed attacks do not count as "weapons", so Twin Takedown does not work RAW.
I do wish that the Deity statblock sections weren't called "Favored Weapon" because of things like this, though. There are a few gods who have unarmed attacks as their favored weapons, and I kinda figured something like this would crop up at some point due to that wording.