Deuteronomy:
23:13 And thou shalt have a paddle upon thy weapon; and it shall be, when thou wilt ease thyself abroad,
thou shalt dig therewith, and shalt turn back and cover that which cometh from thee:
23:14 For the LORD thy God walketh in the midst of thy camp, to deliver thee, and to give up thine enemies before thee;
therefore shall thy camp be holy: that he see no unclean thing in thee, and turn away from thee.