EXOD345 The need for circumspection in one's manner of dressing is inherent in the Bible. A preliminary period before the giving of the law on Mount Sinai was set aside to allow the people to launder their clothes so that they would be properly dressed for the occasion [this verse]. Ecclesiasticus admonished: "Let thy garment be always white, and let thy head lack no oil" (Ecclus. 9:8). Warnings against the wearing of improper clothes abound in the Talmud (see "Appearance and Attire"). This includes provocative clothes (Yevamot 63b) and soiled garments (Shabbat 114a).