Ba'al Shem Tov, Yitro 21/בעל שם טוב על התורה·יתרו כ״א

1Remember the Sabbath day, to keep it holy. (Exodus )On the eve of Shabbos, during the Mincha and Kabbalas Shabbos prayers, a person uplifts all the words and all the mitzvos of the previous week, because that is the time when the worlds ascend.Tzivos HaRivash, part 2, p. 4b