Hebrews 12:21

21. the sight--the vision of God's majesty. quake--Greek, "I am in trembling"; "fear" affected his mind: "trembling," his body. Moses is not recorded in Exodus to have used these words. But Paul, by inspiration, supplies (compare Ac 20:35; 2Ti 3:8) this detail. We read in De 9:19, Septuagint, of similar words used by Moses after breaking the two tables, through fear of God's anger at the people's sin in making the golden calves. He doubtless similarly "feared" in hearing the ten commandments spoken by the voice of Jehovah.

Robert Jamieson, A. R. Fausset & David Brown, 1871 · public domain

Verse 21. And so terrible was the sight, that Moses said, etc. This is not recorded in the account of the giving of the law in Exodus, and it has been made a question on what authority the apostle made this declaration respecting Moses. In De 9:19, Moses indeed says of himself, after he had come down from the mountain, and had broken the two tables of stone that were in his hand, that he was greatly afraid of the anger of the Lord on account of the sin of the people. "I was afraid of the anger and hot displeasure wherewith the Lord was wroth against you to destroy you;" and it has been supposed by many that this is the passage to which the apostle here alludes. But it is very evident that was spoken in a different occasion from the one which is referred to in the passage before us. That was after the law was promulgated, and Moses had descended from the mount; and it was not said in view of the terrors of the scene when the law was given, but of the apprehension of the wrath of God against the people for their sin in making the golden calf. I know not how to explain this, except by the supposition that the apostle here refers to some tradition that the scene produced this effect on his mind. In itself, it is not improbable that Moses thus trembled with alarm, (comp. Ex 19:16,) nor that the remembrance of it should have been handed down among the numerous traditions which the Jews transmitted from age to age. There must have been many things that occurred in their journey through the wilderness which are not recorded in the Books of Moses. Many of them would be preserved naturally in the memory of the people, and transmitted to their posterity; and though those truths might become intermingled with much that was fabulous, yet it is not irrational to suppose that an inspired writer may have adduced pertinent and true examples from these traditions of what actually occurred. It was one method of preserving the truth, thus to select such instances of what actually took place from the mass of traditions, which were destined to perish, as would be useful in future times. The circumstance here mentioned was greatly fitted to increase the impression of the sublimity and fearfulness of the scene. Moses was accustomed to commune with God. He had met him at the "bush," and had been addressed by him face to face; and yet so awful were the scenes at Horeb, that even he could not bear it with composure. What may we, then, suppose to have been the alarm of the body of the people, when the mind of the great leader himself was thus overpowered!

(+) "quake" "tremble"

Albert Barnes, 1834 · public domain