"No Sabbath laws apply wherever there is doubt that life is in danger." ~~ Yoma 8:6
"It was forbidden to break the Sabbath, even when David, king of Israel, died." ~~ Tosefta
"Three things have a faint savor of the world to come: Sabbath, the sun and married love." ~~ Talmud, Berakhot
"Great is the Sabbath, since it outweighs all religious precepts." ~~ Midrash Gadol Ugdula
"The Sabbath was given for the study of the Torah." ~~ Talmud, Pesikta R. 22
"Who observes the Sabbath is as though he created it." ~~ Mekhilta
"As busy as a Jew on Friday…" ~~ Ladino Proverb
"Sabbath has a flavor of Paradise about it." ~~ Talmud, Berakhot
"On six days work may be done, but on the seventh day you shall have a Sabbath of complete rest, holy to the Lord." ~~ Exodus (Shmot) 35:2
"The Sabbath never ceases to be." ~~ Mekhilta
"More than Israel has preserved the Sabbath, the Sabbath has preserved Israel." ~~ Achad Ha’am
"The Sabbath and holidays are the primary reason for Jewish endurance and glory." ~~ Judah Halevi