The LORD spoke these commandments in a loud voice to your whole assembly out of the fire, the cloud, and the deep darkness on the mountain; He added nothing more. And He wrote them on two tablets of stone and gave them to me.
22. These words the Lord spoke. That there may be no doubt about the authority of the law, and that it may not be depreciated by the people, Moses recalls to their memory that the presence of God, as He spoke it, was manifested by sure tokens; for this was the object of the fire, the clouds, and the darkness, whereby God’s voice was signalized...
Here is the repetition of the ten commandments, in which observe, 1. Though they had been spoken before, and written, yet they are again rehearsed; for precept must be upon precept, and line upon line, and all little enough to keep the word of God in our minds and to preserve and renew the impressions of it. We have need to have the same things often inculcated upon us.
Commenting on Deuteronomy 5:6-22
Now therefore why should we die?.... Since we are now alive, and have so wonderfully escaped the danger we were exposed unto, let us be careful that we are not liable to it again: for this great fire will consume us: if it continues, and we are exposed to it; perhaps some of them might remember the fire that burnt in the uttermost parts of...