Parallel
Revelation 14:5
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Καὶ οὐχ εὑρέθη ἐν τῷ στόματι αὐτῶν ψεῦδος· ἄμωμοι γάρ εἰσιν.
And no lie was found in their mouths; they are blameless (note: TR includes before the throne of God.).