וְאַתָּ֞ה דַּבֵּ֨ר אֶל־בְּנֵ֤י יִשְׂרָאֵל֙ לֵאמֹ֔ר אַ֥ךְ אֶת־שַׁבְּתֹתַ֖י תִּשְׁמֹ֑רוּ כִּי֩ א֨וֹת הִ֜וא בֵּינִ֤י וּבֵֽינֵיכֶם֙ לְדֹרֹ֣תֵיכֶ֔ם לָדַ֕עַת כִּ֛י אֲנִ֥י יְהוָ֖ה מְקַדִּשְׁכֶֽם׃
「你要告訴以色列人說：『但你們務必遵守我的安息日，因為這是我與你們之間世世代代的記號，使人知道我是使你們成為聖潔的永恆者。
Jerusalem Talmud Yoma
From where that any uncertainty of a danger to life pushes the Sabbath aside? Rebbi Abbahu in the name of Rebbi Joḥanan: Only you shall keep My Sabbaths;143Ex. 31:12. a diminution. Some want to say, the Torah said,144Since אַךְ everywhere is taken as sign of a diminution, but there is no indication of what is excluded from the observation of the Sabbath, the rabbinic authorities are empowered to determine the exclusion by an argument. Babli 85b, Mekhilta dR. Ismael, Ki Tlssa. desecrate the Sabbath for him, so he will dwell and keep many Sabbaths.