Revelation 3:7

3Remember therefore how you have received and heard. Keep it and repent. If therefore you won’t watch, I will come as a thief, and you won’t know what hour I will come upon you.

4Nevertheless you have a few names in Sardis that didn’t defile their garments. They will walk with me in white, for they are worthy.

5He who overcomes will be arrayed in white garments, and I will in no way blot his name out of the book of life, and I will confess his name before my Father, and before his angels.

6He who has an ear, let him hear what the Spirit says to the assemblies.

7“To the angel of the assembly in Philadelphia write: “He who is holy, he who is true, he who has the key of David, he who opens and no one can shut, and who shuts and no one opens, says these things:

8“I know your works (behold, I have set before you an open door, which no one can shut), that you have a little power, and kept my word, and didn’t deny my name.

9Behold, I make some of the synagogue of Satan, of those who say they are Jews, and they are not, but lie—behold, I will make them to come and worship before your feet, and to know that I have loved you.

10Because you kept my command to endure, I also will keep you from the hour of testing which is to come on the whole world, to test those who dwell on the earth.

11I am coming quickly! Hold firmly that which you have, so that no one takes your crown.