“After these things I looked, and behold, a door standing open in heaven. And the first voice which I heard was like a trumpet speaking with me, saying, ‘Come up here, and I will show you things which must take place after this.” Revelation 4:1.
The seventh and last church of the church age is the Laodicean period which extends from about 1900 to the rapture of the church, it is an age characterized by a lukewarm church.
“And to the angel of the church in Philadelphia write, ‘These things says He who is holy, He who is true, He who has the key of David, He who opens and no one shuts, and shuts and no one opens’” Revelation 3:7.
“And to the angel of the church in Sardis write, ‘These things says He who has the seven Spirits of God and the seven stars: ‘I know your works, that you have a name that you are alive, but you are dead. Be watchful, and strengthen the things which remain, that are ready to die, for I have not found your works perfect [finished or complete] before God. Remember therefore how you have received and heard; hold fast and repent. Therefore if you will not watch, I will come upon you as a thief, and you will not know what hour I will come upon you.’” Revelation 3:1-3.
“And to the angel of the church in Sardis write, ‘These things says He who has the seven Spirits of God and the seven stars: ‘I know your works, that you have a name that you are alive, but you are dead.’” Revelation 3:1.