Moshe describes the desolation of the Land of Israel which will result from failure to heed the mitzvot . Their descendants and foreigners alike will remark on the singular desolation of the Land and its inability to produce crops. Moshe promises, however, that the people will eventually repent. However assimilated they become, eventually Hashem will bring them back to Eretz Yisrael . The Parsha concludes with a dramatic choice between life and death.
Moshe exhorts the people to choose life.
Moshe tells them that whether he is among them or not, Hashem is with them. He summons Yehoshua and exhorts him to be strong and courageous. Hashem tells Moshe that his end is near, and he should summon Yehoshua to stand with him in the Mishkan where Hashem will teach Yehoshua. Hashem tells them that after entering the Land the people will be unfaithful and worship other gods. Moshe records this song in writing and teaches it to Bnei Yisrael .