Revelation 3:6-10

He that hath an ear, let him hear what the Spirit saith to the churches. And to the angel of the church in Philadelphia write: These things saith he that is holy, he that is true, he that hath the key of David, he that openeth and none shall shut, and that shutteth and none openeth: I know thy works (behold, I have set before thee a door opened, which none can shut), that thou hast a little power, and didst keep my word, and didst not deny my name. Behold, I give of the synagogue of Satan, of them that say they are Jews, and they are not, but do lie; behold, I will make them to come and worship before thy feet, and to know that I have loved thee. Because thou didst keep the word of my patience, I also will keep thee from the hour of trial, that hour which is to come upon the whole world, to try them that dwell upon the earth.