In vv. 6-21, the ten covenant words are repeated from Exodus 20, with only a few variations, which have already been discussed in connection with the exposition of the decalogue at Exodus 20:1-14. - In Deuteronomy 5:22-33, Moses expounds still further the short account in Exodus 20:18-21, viz., that after the people had heard the ten covenant words, in their alarm at the awful phenomena in which the Lord revealed His glory, they entreated him to stand between as mediator, that God Himself might not speak to them any further, and that they might not die, and then promised that they would hearken to all that the Lord should speak to him (Exodus 20:23 -31). His purpose in doing so was to link on the exhortation in vv. 32, 33, to keep all the commandments of the Lord and do them, which paves the way for passing to the exposition of the law which follows. "A great voice" (Exodus 20:22) is an adverbial accusative, signifying "with a great voice" (cf. Ges. 118, 3). "And He added no more:" as in Numbers 11:25. God spoken the ten words directly to the people, and then no more; i.e., everything further He addressed to Moses alone, and through his mediation to the people. As mediator He gave him the two tables of stone, upon which He had written the decalogue (cf. Exodus 31:18). This statement somewhat forestalls the historical course; and in Deuteronomy 9:10-11, it is repeated again in its proper historical connection.

Deuteronomy 5:23 Parallel Commentaries

Exodus 20:18,19 And all the people saw the thunder, and the lightning, and the noise of the trumpet, and the mountain smoking...

Hebrews 12:18-21 For you are not come to the mount that might be touched, and that burned with fire, nor to blackness, and darkness, and tempest...