There is a verse for that however it's often overlooked. Luke 21:36
"Watch ye therefore, and pray always, that ye may be accounted worthy to escape all the things that shall come to pass, and to stand before the Son of man."The verses before this have terminology that I'm certain Pre-Tribbers will think backs up they're Imminence doctrine. What they keep missing is that you shouldn't be surprised IF your paying attention.
The point for me today however is that we do have a promise to escape. And Revelation 13:6 refers to people dwelling in heaven when The Beast is at the height of his power.