Revelation Chapter 4, Verse 1

1: μετα ταυτα ειδον και ιδου θυρα ηνεωγμενη εν τω ουρανω και η φωνη η πρωτη ην ηκουσα ως σαλπιγγος λαλουσης μετ εμου λεγουσα αναβα ωδε και δειξω σοι α δει γενεσθαι μετα ταυτα— edit Textus Receptus
1: After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter.— edit KJV text
1: Aftengs which must be done hereafter.— edit Douay text