The Letter to the Church in Philadelphia

The Letter to the church in Philadelphia is unique within the seven letters in Revelation. It’s almost entirely filled with promises to the faithful in this church. Jesus has only good things to say to this church. Therefore, the examination will obviously be about them. What did they do right? How might they have achieved such good news from Jesus? And what can we learn for us today? That is, both for our churches and for us as individuals?