Moses
Exodus 19:19KJV·traditional attribution

And when the voice of the trumpet sounded long, and waxed louder and louder, Moses spake, and God answered him by a voice.

Matthew Henry Presbyterian

God Himself was the preacher that day, descending in fire with ten thousand holy angels attending His majesty. The mountain shook and smoked as His throne; the trumpet grew louder and louder, calling the guilty to assemble, a sound of war to those who knew their sin.

AI summary

Commenting on Exodus 19:16-25

John Gill Reformed Baptist

And when the voice of the trumpet sounded long,.... Not in one continued tone, as before, Exo 19:13, where a different word is used, and when it decreased, and was about to cease, which was to summon the people to attend; but now they were come to the foot of the mount, and this sounding was a preparation to the giving of the law unto...

Geneva Bible Notes Reformed

And when the voice of the trumpet sounded long, and waxed louder and louder, Moses spake, and God answered him by a voice. (h) He gave authority to Moses by plain words, that the people might understand him.