(Devarim 23:15) "For the L-rd your G-d walks in the midst of your camp … And let your camp be holy": Make it holy — whence it was ruled: One should not recite the Shema near the washers' dippings, nor should he enter a bathhouse or a tannery with scrolls or tefillin in his hand. "to save you and to deliver your foes before you": If you do all that is stated herein, in the end He will save you and deliver your foes into your hand. "that He not see in you a thing of nakedness and turn away from you" — whence it is seen that ervah (illicit relations) causes the Shechinah to depart.
Sifrei Devarim 258
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