5:22 These words the LORD spoke to all your assembly on the mount from the midst of the fire, of the cloud, and of the thick darkness, with a great voice: and he {i} added no more. And he wrote them in two tables of stone, and delivered them to me.
(i) Teaching us by his example to be content with his word, and add nothing to it.
5:22 Out of the midst of the fire, of the cloud, and of the thick darkness - That was a dispensation of terror, designed to make the gospel of grace the more welcome, and to be a specimen of the terrors of the judgment - day. He added no more - He ceased for that time to speak immediately, and with that loud voice unto the people; for the rest were delivered to Moses, and by him communicated unto them. This he did to shew the preeminence of that law above the rest, and its everlasting obligation.
5:6-22 There is some variation here from Ex 20 as between the Lord's prayer in Mt 6 and Lu 11. It is more necessary that we tie ourselves to the things, than to the words unalterably. The original reason for hallowing the sabbath, taken from God's resting from the work of creation on the seventh day, is not here mentioned. Though this ever remains in force, it is not the only reason. Here it is taken from Israel's deliverance out of Egypt; for that was typical of our redemption by Jesus Christ, in remembrance of which the Christian sabbath was to be observed. In the resurrection of Christ we were brought into the glorious liberty of the children of God, with a mighty hand, and an outstretched arm. How sweet is it to a soul truly distressed under the terrors of a broken law, to hear the mild and soul-reviving language of the gospel!