 Rav Assi explained why Jews do not make this declaration aloud, comparing this to a man who took jewelry from the royal palace and gave it to his wife, telling her not to wear it in public, but only in the house.But on the Day of Atonement, when Jews are as pure as the ministering angels, they do recite the declaration aloud.Rabbi Johanan considered twice daily recitation of the "Shema" () to fulfill the commandment of that "this book of the law shall not depart out of your mouth, but you shall meditate therein day and night."