A.T. Robertson Commentary Revelation 22:8

"And I John am he that heard and saw these things. And when I heard and saw, I fell down to worship before the feet of the angel that showed me these things." — Revelation 22:8 (ASV)

And I John (Καγω Ιωαννης). Here John the Seer is the speaker. He had already given his name (1:1,4,9). Here he claims to be the "one who hears and sees these things" (ο ακουων κα βλεπων ταυτα).

I fell down to worship (επεσα προσκυνησα). Second aorist active indicative of πιπτω (with -α form) and the first aorist active infinitive of purpose of προσκυνεω. It was a natural, though a wrong, thing to do, especially after Christ's own voice followed that of the angel "which shewed me these things" (του δεικνυοντος ταυτα). Genitive singular of the articular present active participle of δεικνυω. Cf. 1:1; 4:1; 17:1; 21:9f.; 22:1,6.