What does "Lechem ha'Panim" mean?
Rashi: It refers to the two sides of the Lechem ha'Panim that were intact, 1 like two faces that could see the sides of the Mishkan.
Ramban #1 (citing Ibn Ezra): It is so-called with reference to the "Lefanai Tamid" in this Pasuk.
Rashbam: It is an expression of Chashivus - Bread that is fit to place before princes. 4
As the Gemara says in Bava Basra, 28b "Someone who wants to become rich should turn to the north'.