'Speechless' in the Bible

And while he was speaking with me according to these words, I turned my face toward the ground and I was speechless.

(Now the men who were traveling together with him stood speechless, [because they] heard the voice but saw no one.)

You know that when you were pagans, you were led astray to the speechless idols, however you were led.

but received a rebuke for his own lawlessness: a speechless donkey, speaking with a human voice, restrained {the prophet's madness}.