וְאֵת֙ כָּל־נַפְתָּלִ֔י וְאֶת־אֶ֥רֶץ אֶפְרַ֖יִם וּמְנַשֶּׁ֑ה וְאֵת֙ כָּל־אֶ֣רֶץ יְהוּדָ֔ה עַ֖ד הַיָּ֥ם הָאַחֲרֽוֹן׃
и весь Неффалим и земля Ефремова и Манассии, и вся земля Иудейская до самого моря;
Rashi
ואת כל נפתלי AND ALL NAPHTALI — He showed him his land both in its prosperity and in its ruin; and He showed him also Deborah and Barak of kadesh-Naphtali warring with Sisera and his armies (Sifrei Devarim 357:8-9).
Chizkuni
עד הים האחרון, “as far as the western boundary of the land of Israel.”
Rashi
ואת ארץ אפרים ומנשה AND THE LAND OF EPHRAIM AND MANASSEH — He showed him their land in its prosperity and in its ruin; and He showed him also Joshua who descended from Ephraim warring with the kings of Canaan, and Gideon who descended from Manasseh warring with Midian and Amalek (Sifrei Devarim 357:10-13).
Rashi
ואת כל ארץ יהודה AND ALL THE LAND OF JUDAH, in its prosperity and in its ruin; and He showed him also the kings of the house of David and their victories (Sifrei Devarim 357:15-16).
Rashi
ועד הים האחרון UNTO THE UTTERMOST SEA — i.e., the west country, in its prosperity and its ruin. — Another explanation: Read this as though it did not state הים האחרון but היום האחרון [UNTO] THE LAST DAY — The Holy One, blessed be He, showed him all that would in future happen to Israel unto the last day when the dead will again live (Sifrei Devarim 357:18).