In the seven letters Jesus promises rewards for them that overcome. As Revelation deals mainly with the events of the tribulation and the second coming what are believers supposed to overcome if they are all raptured before the tribulation takes place and if this is correct why bother to write the book in the first place as it would have no relevance to the raptured church.
I believe the 7 letters is Church history in major influence at that point in time,which they all can have some influence today,but the Roman Catholic Church does not influence like it used to with the Protestant movement,and all people involved with it.
Rev 3:7 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 no man shutteth; and shutteth, and no man openeth;
Rev 3:8 I know thy works: behold, I have set before thee an open door, and no man can shut it: for thou hast a little strength, and hast kept my word, and hast not denied my name.
Rev 3:9 Behold, I will make them of the synagogue of Satan, which say they are Jews, and 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.
Rev 3:10 Because thou hast kept the word of my patience, I also will keep thee from the hour of temptation, which shall come upon all the world, to try them that dwell upon the earth.
This Church is surely going on now,and has to be a prophetic statement,for there is only one temptation that can come upon all the world,to try them that dwell upon the earth,and that is when they say Peace and safety,which is when the world comes together trying to solve their problems,and have peace,but the Bible says the saints will not be deceived by them,which Jesus pointed out He will deliver all the saints from that temptation.
Rev 3:14 And unto the angel of the church of the Laodiceans write; These things saith the Amen, the faithful and true witness, the beginning of the creation of God;
Rev 3:15 I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.
Rev 3:16 So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth.
Rev 3:17 Because thou sayest, I am rich, and increased with goods, and have need of nothing; and knowest not that thou art wretched, and miserable, and poor, and blind, and naked.
We know that this Church is going on today more than it ever did,the last Church,with people that claim Christ heaping money,and material things,to themselves,and saying they have need of nothing,but God said they are not right with Him.
Never before in the history of the Church age has people heaped such things to themselves,and disregarded the poor,and thought godliness is gain(money,and material),where the early Church sold all they has and distributed to the poor saints.