φθέγγομαι [in LXX for עָנָה, נָבַע hi., etc. ;] of men or animals, to utter a sound or voice: absol., Act.4:18; before ἐν φωνῇ, 2Pe.2:16; with accusative, ὑπέρογκα, 2Pe.2:18.† (AS)
STRONG'S WORD STUDY
G5350 — φθέγγομαι
phthengomai · to speak · Greek
3 tagged verse occurrences
Acts 4:18 · φθέγγεσθαιAnd they called them, and charged them not to speak at all nor teach in the name of Jesus.2 Peter 2:16 · φθεγξάμενονbut he was rebuked for his own transgression: a dumb ass spake with man’s voice and stayed the madness of the prophet.2 Peter 2:18 · φθεγγόμενοιFor, uttering great swelling words of vanity, they entice in the lusts of the flesh, by lasciviousness, those who are just escaping from them that live in error;