On The Keys
The motif of keys functions as a metonym for divine authority to admit, exclude, or control access to sacred realms or hidden knowledge. While Judaism and Christianity depict keys as delegated authority given to human agents (the house of David or the apostle Peter) to bind and loose, Islam strictly reserves the keys of the unseen (al-ghayb) exclusively for God. This divergence highlights a theological tension between participatory ecclesial authority and absolute divine omniscience regarding the hidden.

What every account tells.
- iKeys serve as a symbol of administrative or cosmic authority.
- iiThe authority involves control over access to a specific domain (house, kingdom, or unseen).
- iiiThe power is either delegated to a human agent or retained solely by the deity.
- ivThe imagery implies the power to open what is shut and shut what is open.
How each tradition tells it.
In the Isaiah narrative, the key is transferred from one steward to another, symbolizing the dynastic shift of political power within the Davidic monarchy rather than cosmic authority over the afterlife.
Christian texts expand the motif to include the power to 'bind and loose,' interpreting the keys as the authority to forgive sins and determine entry into the eschatological kingdom.
The Qur'anic text explicitly negates the delegation of the keys of the unseen to any being other than God, emphasizing divine exclusivity over hidden knowledge.