(19) Speak thou with us.--Comp. Deuteronomy 5:24-27, where the words of the people are reported at greater length :--"Behold, the Lord our God hath shewed us his glory and his greatness, and we have heard his voice out of the midst of the fire: we have seen this day that God doth talk with man, and he liveth. Now therefore why should we die? For this great fire will consume us: if we hear the voice of the Lord our God any more, then we shall die. For who is there of all flesh, that hath heard the voice of the living God speaking out of the midst of the fire, as we have, and lived? Go thou near, and hear all that the Lord our God shall say: and speak thou unto us all that the Lord our God shall speak unto thee; and we will hear it, and do it."

Verse 19. - And they said unto Moses. Their whole speech, as delivered in Deuteronomy, was as follows: - "Behold, the Lord our God hath shewed us his glory and his greatness, and we have heard his voice out of the midst of the fire: we have seen this day, that God doth talk with man, and he liveth. Now, therefore, why should we die? for this great fire will consume us: if we hear the voice of the Lord our God any more, then we shall die. For who is there of all flesh, that hath heard the voice of the living God, speaking out of the midst of the fire, as we have, and lived? Go then near, and hear all that the Lord our God shall say; and speak thou unto us all that the Lord our God shall speak unto thee; and. we will hear it, and do it" (Deuteronomy 5:24-27). The speech is here abbreviated greatly; but its essential points are preserved - "Speak thou with us" - be thou our intermediary - "Let not God speak with us, lest we die.'"

20:18-21 This law, which is so extensive that we cannot measure it, so spiritual that we cannot evade it, and so reasonable that we cannot find fault with it, will be the rule of the future judgment of God, as it is for the present conduct of man. If tried by this rule, we shall find our lives have been passed in transgressions. And with this holy law and an awful judgment before us, who can despise the gospel of Christ? And the knowledge of the law shows our need of repentance. In every believer's heart sin is dethroned and crucified, the law of God is written, and the image of God renewed. The Holy Spirit enables him to hate sin and flee from it, to love and keep this law in sincerity and truth; nor will he cease to repent.And they said unto Moses,.... Who was now come down from the mountain, and to whom the heads of the tribes and elders of the people came from the camp, and out of their tents, by whom the people said to him, as follows, see Deuteronomy 5:23,

speak thou with us, and we will hear; their request is, that whatsoever it was the will and pleasure of God to declare to them, that he would communicate it to Moses, and he deliver it to them, promising that they would hearken to it, and obey it, as if they had heard it from the mouth of God himself:

but let not God speak with us, lest we die; pray to him, that he would not speak immediately, but by a mediator, which they now saw the need of; that there was no drawing nigh to God, nor hearing nor receiving anything from him without one; that his law, as it came from him to them sinful creatures, was a killing letter, and the ministration of condemnation and death, and injected such terror into their minds, that if it was continued they must die under it: thus, as the apostle observes, when "they heard the voice of words, entreated that the word should not be spoken to them any more, for they could not endure that which was commanded", Hebrews 12:19.