לֹ֣א אֶת־אֲבֹתֵ֔ינוּ כָּרַ֥ת יְהוָ֖ה אֶת־הַבְּרִ֣ית הַזֹּ֑את כִּ֣י אִתָּ֗נוּ אֲנַ֨חְנוּ אֵ֥לֶּה פֹ֛ה הַיּ֖וֹם כֻּלָּ֥נוּ חַיִּֽים׃
Ce n’est pas avec nos pères que l’Éternel a contracté cette alliance, c’est avec nous-mêmes, nous qui sommes ici, aujourd’hui, tous vivants.
Rashi
לא את אבתינו NOT WITH OUR FATHERS — i.e. not with them alone, כרת ה׳ וגו׳ DID THE LORD MAKE [THIS COVENANT], כי אתנו BUT WITH US etc.
Ibn Ezra
Not with our fathers i.e., not only with our fathers, as in “Your name will no longer be called ‘Yaaqov’” [Genesis 35: 10],
Sforno
היום כלנו חיים, this is why the covenant has to be made with you who enter the Holy Land, so that you will arrange things in such a manner that future generations who were not present at the time this covenant was made will consider it binding for themselves and conduct themselves accordingly.