Deuteronomy 4:26

26 I call heaven and earth to witness against you today that you will soon utterly perish from the land that you are crossing the Jordan to occupy; you will not live long on it, but will be utterly destroyed.

Deuteronomy 4:26 Meaning and Commentary

Deuteronomy 4:26

I call heaven and earth to witness against you this day
Should they be guilty of such a sin, since they were so strongly and publicly cautioned against it; and even the heaven and the earth were called upon as witnesses of the law being set before them, which so expressly forbids it, ( Deuteronomy 30:19 )

that ye shall soon utterly perish from off the land whereunto you go
over Jordan to possess it;
though they were now about to go over Jordan and inherit the land of Canaan, yet they would not enjoy it long, but be taken and carried captive out of it; as the ten tribes were by Shalmaneser king of Assyria, and the two tribes by Nebuchadnezzar king of Babylon, and both for their idolatry and other crimes.

Deuteronomy 4:26 In-Context

24 For the Lord your God is a devouring fire, a jealous God.
25 When you have had children and children's children, and become complacent in the land, if you act corruptly by making an idol in the form of anything, thus doing what is evil in the sight of the Lord your God, and provoking him to anger,
26 I call heaven and earth to witness against you today that you will soon utterly perish from the land that you are crossing the Jordan to occupy; you will not live long on it, but will be utterly destroyed.
27 The Lord will scatter you among the peoples; only a few of you will be left among the nations where the Lord will lead you.
28 There you will serve other gods made by human hands, objects of wood and stone that neither see, nor hear, nor eat, nor smell.