Revelation 4:8
8 καὶ τὰ τέσσαρα ζῷα, ἓν καθ' ἓν αὐτῶν ἔχων ἀνὰ πτέρυγας ἕξ, κυκλόθεν καὶ ἔσωθεν γέμουσιν ὀφθαλμῶν· καὶ ἀνάπαυσιν οὐκ ἔχουσιν ἡμέρας καὶ νυκτὸς λέγοντες, Ἅγιος ἅγιος ἅγιος κύριος ὁ θεὸς ὁ παντοκράτωρ, ὁ ἦν καὶ ὁ ὢν καὶ ὁ ἐρχόμενος.
The four living creatures, each one of them having six wings, are full of eyes around and within. They have no rest day and night, saying, “Holy, holy, holy is the Lord God, the Almighty, who was and who is and who is to come!”