Revelation 4:1

1AfterΜετὰthese thingsταῦταI lookedεἶδον,andκαὶbeholdἰδοὺa doorθύραwas standing openἠνεῳγμένηinἐντῷheavenοὐρανῷ,andκαὶtheἡvoiceφωνὴἡfirstπρώτηthatἣνI heardἤκουσαlikeὡςa trumpetσάλπιγγοςwas speakingλαλούσηςwithμετ’meἐμοῦ,sayingλέγων·Come upἈνάβαhereὧδε,andκαὶI will showδείξωto youσοιwhatἃit behoovesδεῖto take placeγενέσθαι.afterμετὰthese thingsταῦτα

After these things I saw, and behold, a door was standing open in heaven, and the first voice that I heard as a trumpet is speaking with me, saying, “Come up here, and I will show you what is necessary to take place after these things.”