Revelation 3:7-9

7“And to the angel (divine messenger) of the church in Philadelphia write: These are the words of the Holy One, the True One, He who has the key [to the house] of David, He who opens and no one will [be able to] shut, and He who shuts and no one opens:

8‘I know your deeds. See, I have set before you an open door which no one is able to shut, for you have a little power, and have kept My word, and have not renounced or denied My name.

9Take note, I will make those of the synagogue of Satan, who say that they are Jews and are not, but lie—I will make them come and bow down at your feet and make them know [without any doubt] that I have loved you.