Albert Barnes' Notes on the Whole Bible - Hebrews 12:19
And the voice of a trumpet - Exodus 19:19. The sound of the trumpet amidst the tempest was suited to increase the terror of the scene.And the voice of words - Spoken by God; Exodus 19:19. It is easy to conceive what must have been the awe produced by a voice uttered from the midst of the tempest so distinct as to be heard by the hundreds of thousands of Israel, when the speaker was invisible.Which voice they that heard ... - Exodus 20:18-19. It was so fearful and overpowering that the people... read more
The Pulpit Commentary - Hebrews 12:19-21
And the sound of a trumpet ( Exodus 19:16 ) , and the voice of words ( Deuteronomy 4:12 ); which voice they that heard entreated that no word should be spoken to them more : for they could not endure that which was commanded (rather, enjoined), If even a beast touch the mountain, it shall be stoned ( Exodus 19:13 ; "or thrust through with a dart" is an interpolation in the text from the passage in Exodus): and so terrible was the sight, that Moses said, I exceedingly fear and... read more