In context
4Yet you have a few people in Sardis who have not soiled their clothes, and they will walk with me in white, for they are worthy. 5The one who conquers will be dressed, like them, in white, and I will never blot out his name from the book of life. I will acknowledge his name before my Father and before his angels. 6Let anyone who has ears listen to what the Spirit says to the churches.” 7To the angel of the church in Philadelphia, write: “These are the words of the holy one, the true one, who holds the key of David, who opens and no one will shut, and shuts and no one opens. 8I know your works. Look, I have placed before you an open door that no one can shut. I know that you have little strength, yet you have kept my word and have not denied my name.
