Deuteronomy 23:13

A paddle; the nature of which may be known from the use, which here follows. Cover that which cometh from thee; partly, to prevent the annoyance of ourselves or others; partly, to preserve and exercise modesty and natural honesty; and principally, that by such outward rites they might be inured to the greater reverence of the Divine Majesty, and the greater caution to avoid all real and moral uncleanness, especially now when it was most necessary so to do.