Pure confusion. It says the APOSTASY happens before the revealing of man of sin, not the RAPTURE. If you want to depart in the Apostasy, go right ahead. The rest of us will partiently endure in faith, not becoming Apostates, and wait for real rapture when the great trib has ended.
But it does NOT mean "the departure from the faith".
Somebody anybody anywhere anytime show me the Greek manuscript that includes the Greek terms "from the faith" after the Greek terms "he apostasia".
They can't because it doesn't exist.
This much ballyhooed "apostasy" misapprehension is the result of a vivid imagination nothing more.