The "catching away of all believers" is the rapture. While the actual word rapture does not appear in the scriptures, we do have multiple occurrence of the words "caught up" (2 Cor 12:2. 4; 1 Thess 4:17; Rev 12:5), from which we get the Greek word harpazō, biblically defined...
to seize, carry off by force; to seize on, claim for one's self eagerly; to snatch out or away (derivative root verb-haireō[G138]-to take for oneself, to prefer, choose to choose by vote, elect to office). Many Christians and theologians are contrary to any such doctrine because.
the word rapture is not specifically stated in the sacred text, yet neither is the term "trinity", the universally affirmed word among believers referring to the distinct persons of the triune God. The word rapture comes from the latin translation ( latin vulgate) of the greek..
'rapiemur', when translated then to English gives us 'rapture'. Interestingly, we get the English word harpoon (defined as a long spear-like instrument to catch fish or large marine animals) from this greek word 'harpazo'.