(6) I am the Lord thy God.--It should never be forgotten that this sentence is an integral part of the Decalogue, and also the first part. The declaration of Divine relationship, with all that it implies--the covenanted adoption of Israel by Jehovah--precedes all the requirements of the Law. The Law is, therefore, primarily a covenant in the strictest sense.

Verse 6. - I am Jehovah thy God. "The Law, the establishing rule for men, can proceed only from him who alone and over all stands fast; i.e. from God, specially as Jehovah. The eternal, unchangeable One, since he demands the obedience of faith (is not merely the moral imperative), must not only reveal himself, but in revealing himself must claim Israel as loyal and faithful; thy God" (Schroeder).

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!I am the Lord thy God,.... This is the preface to the ten commandments, and is the same with that in Exodus 20:2; see Gill on Exodus 20:2, and those commands are here delivered in the same order, and pretty near in the same words, with a little variation, and a few additions; which I shall only observe, and refer to Exodus 20:1 for the sense of the various laws.