"There is not indeed upon the earth a nation like Israel. The last thing they do before going to sleep is to devote themselves to the study of the Torah and the fulfillment of its laws, and this also is their first occupation upon awakening. As soon as they arise, they recite the Shema' and adore God, and not until after they have done this, do they go about their business. If evil spirits come to attack them, or if disaster threatens them, they worship their God, and as soon as they utter the words, 'The Lord our God is one Lord,' the harmful spirits become powerless against them and whisper after them the words, 'Praised be the Name of the Glory of His Kingdom, for ever and ever.'
When at night they retire, they against recite the Shema', whereupon the angels of the day pass on the trust of guarding them to the angels of night, and when, upon awakening they again worship their Lord, the angels of the night again pass them on to be guarded by the angels of day."