Devarim 4:40

40 Thou shalt be shomer over His chukkim, therefore, and His mitzvot, which I command thee today, that it may go well with thee, and with thy banim after thee, and that thou mayest prolong thy yamim upon Ha’Aretz, which Hashem Eloheicha giveth thee, kol hayamim.

Devarim 4:40 Meaning and Commentary

Deuteronomy 4:40

Thou shall keep therefore his statutes, and his commandments,
&c.] All his laws, moral, ceremonial, and judicial, partly being under obligation to him for all the great and good things done by him for them before enumerated, and partly and chiefly because he is the Lord God in heaven and in earth, and has a right to command and ought to be obeyed:

which I command thee this day;
in the name of the Lord, and which he repeated, opened, and explained, and charged them afresh to observe; otherwise they were such that had been given long ago:

that it may go well with thee, and with thy children after thee;
that they and theirs might enjoy temporal mercies, and continue in the land of Canaan, and partake of all the blessings in it, as follows, and of the sanctuary of the Lord, and the privileges of it:

and that thou mayest prolong thy days upon the earth, which the Lord
thy God giveth thee for ever;
that is, that they and theirs might live long in the land of Canaan, which the Lord gave for an inheritance for ever, provided they kept his law, and were obedient to his commands; see ( Deuteronomy 6:25 ) ( Isaiah 1:19 ) , and though they have had several interruptions by their captivities, and especially by their present very long one, yet when they shall return and seek the Lord their God, and David their king, they shall have their land restored to them again, and shall never more be dispossessed of it.

Devarim 4:40 In-Context

38 To drive out Goyim from before thee greater and mightier than thou art, to bring thee in, to give thee their land for a nachalah, as it is yom hazeh.

39 Know therefore today, and consider it in thine lev, that Hashem He is HaElohim in Shomayim above, and upon Ha’Aretz beneath: there is no other.

40 Thou shalt be shomer over His chukkim, therefore, and His mitzvot, which I command thee today, that it may go well with thee, and with thy banim after thee, and that thou mayest prolong thy yamim upon Ha’Aretz, which Hashem Eloheicha giveth thee, kol hayamim.

41 Then Moshe separated and set apart three towns on this side of the Yarden toward the rising of the shemesh;

42 That the rotze’ach might flee thither, which should kill his neighbor unawares, and hated him not in times past; and that fleeing unto one of these towns he might live: