3 Hear therefore, Israel, and observe to do it; that it may be well with you, and that you may increase mightily, as Yahweh, the God of your fathers, has promised to you, in a land flowing with milk and honey.
*Minor differences ignored. Grouped by changes, with first version listed as example.
In the land - Better: According as the Lord the God of thy fathers promised thee a land flowing with milk and honey.
Hear therefore, O Israel, and observe to do it - Literally, Ye shall hear, O Israel, and thou shalt keep to do them.
1. God is to be heard; no obligation without law to found it on, and no law in religion but from God.
2. The commandment must be understood in order to be obeyed.
3. It must be observed - attentively considered, in order to be understood. And,
4. It must be performed, that the end for which it was given may be accomplished, viz., that God may be glorified, and that it may be well with the people.
What is here spoken applies powerfully to every part of the moral law; God has given it as a rule of life, therefore obedience to it is indispensably necessary, not to the purchase of salvation, for no human merit can ever extend to that, but it is the way by which both the justice and mercy of God choose to conduct men to heaven. But let it be fully understood that no man can walk in the way of obedience but by and under the influence of the grace of God.
Hear therefore, O Israel, and observe to do [it]; that it may be well with thee, and that ye may increase mightily, as the LORD God of thy fathers hath promised thee, (b) in the land that floweth with milk and honey.
(b) Which has an abundance of all things needed for man's life.
Hear therefore, O Israel, and observe to do it,.... Or them, the commandments given them:
that it may be well with thee; in body and estate:
and that ye may increase mightily; not only in wealth and riches, but chiefly in numbers:
as the Lord God of thy fathers hath promised thee; a promise of increase of numbers was frequently made to Abraham, Isaac, and Jacob; as that their seed should be as the stars of heaven, and as the dust of the earth, and the sand on the sea shore, innumerable; see Genesis 15:5 and this especially
in the land that floweth with milk and honey; a very common periphrasis of the land of Canaan, because of the plenty of good things in it; see Exodus 3:8.
The maintenance of the fear of God would bring prosperity, and the increase of the nation promised to the fathers. In form this thought is not connected with Deuteronomy 6:3 as the apodosis, but it is appended to the leading thought in Deuteronomy 6:1 by the words "Hear therefore, O Israel!" which correspond to the expression "to teach you" in Deuteronomy 6:1. אשׁר, that, in order that (as in Deuteronomy 2:25; Deuteronomy 4:10, etc.). The increase of the nation had been promised to the patriarchs from the very first (Genesis 12:1; cf. Leviticus 26:9). - On "milk and honey," see at Exodus 3:8.
*More commentary available at chapter level.