What does the Torah mean when it writes "Ki Hashem Elokecha Mis'halech b'Kerev Machanecha"?
Rashbam: It means that when they went to war, they took the Aron with them. 1
Targum Onkelos and Targum Yonasan: It refers to the Shechinah, that would accompany them into battle.
What does the Torah mean when it writes "Vehayah Machanecha Kadosh"?
Seforno: It means devoid of Tum'ah and things that are repulsive.
Yere'im 392 (12 in old editions): One may not say Divrei Kedushah where Ervah is visible. Seeing Ervah expels the Shechinah.
SeMaG (Aseh 119), Sefer ha'Chinuch 566, 567: It is the reason for the Mitzvos (SeMaG
What does "Ervas Davar" refer to?
Ramban: It refers to Giluy Arayos. 1
Seforno: It refers to someone who is Pasul - whose genealogy is tainted. 2
Ibn Ezra: It is immorality in action or speech.
Shabbos 150a: This forbids reciting Shma facing a naked person.
Bava Metzi'a 114b: A naked person may not separate Terumah (for one must bless before separating, and one may not bless while naked due to) "v'Lo Yireh Vecha Ervas Davar."
What are the implications of the words "v'Shav me'Acharecha"?
Seforno: It implies that 'when you turn the backs of your necks to him regarding one of the above, He will forsake you'.
Alshich: If there will be Ervas Davar among you, Hashem will reverse and become your enemy in back of you, and you are vanquished in front and in back. Even one matter that separates you from Hashem, He will depart, and you will fall into many evils via your Yetzer.
Ha'Emek Davar: Ervas Davar removes awe and honor of the Shechinah.