Read Deuteronomy 30:18 Using Other Translations
I denounce unto you this day, that ye shall surely perish, and that ye shall not prolong your days upon the land, whither thou passest over Jordan to go to possess it.
I declare to you today, that you shall surely perish. You shall not live long in the land that you are going over the Jordan to enter and possess.
then I warn you now that you will certainly be destroyed. You will not live a long, good life in the land you are crossing the Jordan to occupy.