Rabbi Shimon bar Yochai, compiled by Rabbi Moshe Cordovero, The Zohar — Introduction
“ For until that time, it is still Shabbat, and the sanctity of the Shabbat still rests upon us. So after the benediction over the cup is performed, all those hosts and legions that govern the weekdays return to their positions, each one according to the appointed service for which he is responsible.Because as soon as the Shabbat begins and the day is sanctified, holiness is aroused and governs the world; worldliness is removed from its rule. Only when Shabbat is over do they regain their position again. ”
