The revelation of Jesus Christ, which God gave him to show his servants the things that must soon take place. He made it known by sending his angel to his servant John, who bore witness to the word of God and to the testimony of Jesus Christ, even to all that he saw. (Revelation 1:1-2, ESV)
“Revelation”, the common english translation of the greek word “apocalypsis” (αποκαλυψις) which opens this text, is such a familiar term that its basic meaning is almost lost to our ears and eyes. Similarly, the term “apocalypse” has come to refer to any large-scale catastrophic event that threatens the extinction of humankind and life as we know it i.e. zombie apocalypse. (Pace Rick Grimes et al.)
But slow down and listen to the text. John’s first readers did not have this linguistic and cultural baggage hanging on these terms. They were not dispensationalists. There was no such thing as guns or atomic bombs. They had not heard of global warming. John and his early readers had their own linguistic and cultural milieu which shaped their understanding of the term “apocalypse” and the other terms, allusions, and images John uses throughout this prophetic letter to the Christian communities in first century Asia Minor. Like learning a new language, it takes some mental effort and yes some reading and research to understand and interpret an ancient text, including those included in our Scriptures.