Deuteronomy 11:21

21 so that as long as the heavens are above the earth, your days and those of your children may be many in the land the Lord swore to give your fathers.

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 Teach them to your children, talking about them when you sit in your house and when you walk along the road, when you lie down and when you get up.

20 Write them on the doorposts of your house and on your gates,

21 so that as long as the heavens are above the earth, your days and those of your children may be many in the land the Lord swore to give your fathers.

22 For if you carefully observe every one of these commands I am giving you to follow-to love the Lord your God, walk in all His ways, and remain faithful to Him-

23 the Lord will drive out all these nations before you, and you will drive out nations greater and stronger than you are.