Revelation 3:7-8

“And to the angel of the church in Philadelphia write: H e who is holy, who is true, who has the key of David, who opens and no one will shut, and who shuts and no one opens, says this: ‘I know your deeds. Behold, I have put before you an open door which no one can shut, because you have a little power, and have kept My word, and have not denied My name.