Some believe and teach that Revelation 4:1 is the "rapture of the church".
I believe it is not.
Prove me wrong.
Here is what the verse says:
After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter.
There is no way you can twist or turn or manipulate that verse to get a clear teaching (doctrine) that the church will be raptured out of the Earth and taken to heaven before a 7 year tribulation. The verse just does not say that! The context is that John (not the church) is told to "come up hither".
So is this a prooftext for a pretrib rapture? Absolutely not.
Now if a person already believes in a pretribulation premillenial rapture, it is possible to see that this verse could be referring to or hinting at a "rapture" for the church. Chronologically this is where the "rapture" would happen in Revelation.
Now, for myself, I do believe in a pretrib premillenial rapture, and so I do believe this verse could be referring to the rapture.
But let's be honest - this verse is not a prooftext for the rapture!