|Matthew Henry's Concise Commentary|
14:20-35 The Lord granted the prayer of Moses so far as not at once to destroy the congregation. But disbelief of the promise forbids the benefit. Those who despise the pleasant land shall be shut out of it. The promise of God should be fulfilled to their children. They wished to die in the wilderness; God made their sin their ruin, took them at their word, and their carcases fell in the wilderness. They were made to groan under the burden of their own sin, which was too heavy for them to bear. Ye shall know my breach of promise, both the causes of it, that it is procured by your sin, for God never leaves any till they first leave him; and the consequences of it, that will produce your ruin. But your little ones, now under twenty years old, which ye, in your unbelief, said should be a prey, them will I bring in. God will let them know that he can put a difference between the guilty and the innocent, and cut them off without touching their children. Thus God would not utterly take away his loving kindness.
Verse 21. - As truly as I live, all the earth shall be filled with the glory of the Lord. Rather, "as truly as I live, and the glory of the Lord shall fill all the earth." Both clauses are dependent on יְאוּלָם, and the second is but the necessary correlative of the first.
Gill's Exposition of the Entire Bible
But as truly as I live,.... Which is the form of an oath, as the Targum; the Lord swears by his life, or by himself, because he could swear by no greater:
all the earth shall be filled with the glory of the Lord; this is not the thing sworn unto or confirmed, but that by which the oath is made and confirmed; and the sense is, that as sure as the earth "had been" filled with the glory of the Lord, as it may be rendered, as it had been with the fame of what he had done in Egypt, and at the Red sea; or as it "should be" filled with it in later times, especially in the kingdom of the Messiah in the latter day; see Isaiah 6:3; so sure the men that had provoked him should not see the land of Canaan.
Jamieson-Fausset-Brown Bible Commentary
21. all the earth shall be filled with the glory of the Lord—This promise, in its full acceptation, remains to be verified by the eventual and universal prevalence of Christianity in the world. But the terms were used restrictively in respect to the occasion, to the report which would spread over all the land of the "terrible things in righteousness" [Ps 65:5] which God would do in the infliction of the doom described, to which that rebellious race was now consigned.
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