Explanation of Ramban - 1) 33:2 - debate between Rashi, Rav Saadia Gaon, Ibn Ezra and Ramban where God 'came from' to Mt. Sinai, 2) 33:5 - debate between Rashi, Ibn Ezra and Ramban who is the king of Yeshurun, 3) 33:6 - debate between Rashi, Ibn Ezra and Ramban why the tribe of Shimon is skipped in the blessings, and why the tribes are blessed out of order.