OET interlinear REV 19:6

uW Translation Notes:

Note 1 topic: figures-of-speech / simile

ὡς φωνὴν ὄχλου πολλοῦ, καὶ ὡς φωνὴν ὑδάτων πολλῶν, καὶ ὡς φωνὴν βροντῶν ἰσχυρῶν

like as like (Some words not found in SR-GNT: Καί ἤκουσα ὡς φωνήν ὄχλου πολλοῦ καί ὡς φωνήν ὑδάτων πολλῶν καί ὡς φωνήν βροντῶν ἰσχυρῶν λεγόντων Ἁλληλουϊά ὅτι ἐβασίλευσεν Κύριος ὁ Θεός ἡμῶν ὁ Παντοκράτωρ)

The point of this comparison is that the sound was very loud. If it would be helpful in your language, you could make this point explicitly. Alternate translation: [a sound that was very loud, like the sound of a great crowd or many waters or powerful thunder]

Note 2 topic: figures-of-speech / idiom

ὑδάτων πολλῶν

˱of˲_waters many

By many waters, John could mean a loud waterfall or raging floodwaters. See how you translated the similar expression in [1:15](../01/15.md). Alternate translation: [of a waterfall] or [of raging floodwaters]

Note 3 topic: figures-of-speech / exclusive

ἡμῶν

˱of˲_us

The person speaking here is likely continuing to address those who serve and fear God. So by our, the speaker means himself and them, so use the inclusive form of that word in your translation if your language marks that distinction.