Deuteronomy 11:21

21 that your days may be long, and the days of your children, upon the land which the Lord sware to your fathers to give to them, as the days of heaven upon the earth.

Deuteronomy 11:21 Meaning and Commentary

Deuteronomy 11:21

That your days may be multiplied
Long life being a very desirable blessing, and which is promised to those that obey and keep the law; see ( Deuteronomy 30:19 Deuteronomy 30:20 ) ( Psalms 91:16 )

and the days of your children;
which are dear to parents, and the continuance of whose lives, next to their own, is most desirable, yea, as desirable as their own; and especially it is desirable that they might have a posterity descending from them, to enjoy for ever their estates and possessions; as it was to the people of Israel, that they might have a seed always to dwell

in the land which the Lord sware unto your fathers to give them;
the land of Canaan, so often spoken of as the promise, oath, and gift of God:

as the days of heaven upon the earth;
that is, as long as the heavens and the earth shall be, and the one shall be over the other, as they will be to the end of time.

Deuteronomy 11:21 In-Context

19 And ye shall teach them to your children, so as to speak about them when thou sittest in the house, and when thou walkest by the way, and when thou sleepest, and when thou risest up.

20 And ye shall write them on the lintels of your houses, and on your gates;

21 that your days may be long, and the days of your children, upon the land which the Lord sware to your fathers to give to them, as the days of heaven upon the earth.

22 And it shall come to pass that if ye will indeed hearken to all these commands, which I charge thee to observe this day, to love the Lord our God, and to walk in all his ways, and to cleave close to him;

23 then the Lord shall cast out all these nations before you, and ye shall inherit great nations and stronger than yourselves.