# Philadelphia

This is the name of a city in the western part of Asia that today is modern Turkey. See how you translated this in Revelation 1:11. 

# key of David

Jesus speaks of his authority to decide who may go into his kingdom as if it were King David's key. 

# he opens and no one shuts

"he opens the door to the kingdom and no one can close it"

# he shuts and no one can open

"he closes the door and no one can open it"