Jesus is the one who is holy and true, who holds the key of David. What he opens, no one can shut; what he shuts, no one can open.
Philadelphia is Alaşehir. The letter is one of the gentlest of the seven: an open door, and a call to hold on. The ancient city is mostly under the modern town. What remains does not compete with Ephesus, and it does not need to. The pilgrimage stops because the letter stops here.