Parallel
Revelation 1:10
Nestle 1904 Greek New Testament · Berean Standard Bible
ἐγενόμην ἐν Πνεύματι ἐν τῇ κυριακῇ ἡμέρᾳ καὶ ἤκουσα ὀπίσω μου φωνὴν μεγάλην ὡς σάλπιγγος
On the Lord’s day I was in the Spirit, and I heard behind me a loud voice like a trumpet,