The first thing to come is the rapture of the overcoming believers.
All who have the Cross wrought deeply in their lives will be raptured.
BUT THOSE who are saved and YET mix with the world and compromise with sins will REMAIN on the earth and pass through the Great Tribulation.
Only the victorious and watchful saints are READY TO BE RECEIVED, the rest of the saved believers will go through the Great Tribulation and be received at the sounding of the seventh trumpet.
All this pertains to Christians.