Deuteronomy 30:18

18 I declare to you this day, that ye shall utterly perish, and ye shall by no means live long upon the land, into which ye go over Jordan to inherit it.

Deuteronomy 30:18 Meaning and Commentary

Deuteronomy 30:18

I denounce unto, you this day that ye shall surely perish,
&c.] By one judgment or another; this he most solemnly averred, and it might be depended upon that it would certainly be their case; see ( Deuteronomy 4:26 ) ;

[and that] ye shall not prolong [your] days upon the land, whither
thou passest over Jordan to go to possess it;
but be cut short by death, of one kind or another, by sword, or famine, or pestilence, or be carried into captivity; one or other of which were frequently their case.

Deuteronomy 30:18 In-Context

16 If thou wilt hearken to the commands of the Lord thy God, which I command thee this day, to love the Lord thy God, to walk in all his ways, and to keep his ordinances, and his judgments; then ye shall live, and shall be many in number, and the Lord thy God shall bless thee in all the land into which thou goest to inherit it.
17 But if thy heart change, and thou wilt not hearken, and thou shalt go astray and worship other gods, and serve them,
18 I declare to you this day, that ye shall utterly perish, and ye shall by no means live long upon the land, into which ye go over Jordan to inherit it.
19 I call both heaven and earth to witness this day against you, I have set before you life and death, the blessing and the curse: choose thou life, that thou and thy seed may live;
20 to love the Lord thy God, to hearken to his voice, and cleave to him; for this thy life, and the length of thy days, that thou shouldest dwell upon the land, which the Lord sware to thy fathers, Abraam, and Isaac, and Jacob, to give to them.

The Brenton translation of the Septuagint is in the public domain.