The Temple Chamber, also known at the Chamber under the Temple, was a room located underneath the Temple of God within the city of Zion.

It was shown in the holographic Vision of the Archangel Schueler to contain what Safeholdians would consider an altar, but what was actually an access panel with two hand scanners and a reccess for the Key of Schueler. Merlin speculated that using the device activated an AI that allowed the user access to the kinetic bombardment platforms in the planet's orbit. (HFAF)