שֵׁ֣שֶׁת יָמִים֮ תֵּעָשֶׂ֣ה מְלָאכָה֒ וּבַיּ֣וֹם הַשְּׁבִיעִ֗י יִהְיֶ֨ה לָכֶ֥ם קֹ֛דֶשׁ שַׁבַּ֥ת שַׁבָּת֖וֹן לַיהוָ֑ה כָּל־הָעֹשֶׂ֥ה ב֛וֹ מְלָאכָ֖ה יוּמָֽת׃
六天要做工，但第七天對你們來說是聖日，是歸永恆者的安息日，是完全安息的日子；凡在這日做工的，必被處死。
Mekhilta DeRabbi Yishmael
"For whoever does work upon it, that soul shall be but off" — a complete work. If one wrote one letter (on the Sabbath) in the morning, and another towards evening; or if he wove one strand in the morning and another towards evening, I might think that he is liable. It is, therefore, written "And you shall keep the Sabbath, for it is holy to you. Those who profane it shall be put to death. For whoever does work upon it, that soul shall be cut off" — a complete work.
Mekhilta DeRabbi Yishmael
(Ibid. 2) "Six days may work be done": And another verse states (Ibid. 20:9): "Six days shall you work." (How are these to be reconciled?) When Israel do the will of the L-rd, their work is done by others. (Hence, the first verse.)
Mekhilta DeRabbi Yishmael
"All labor shall not be done in them": Neither you nor your neighbor shall do it, but a gentile may do it (for you). You say this, but perhaps the meaning is: Neither you, nor your neighbor, nor a gentile may do your work? It is, therefore, written (Leviticus 23:7) "All manner of work you shall not do," but a gentile may do your work. Therefore, (the meaning here is) You shall not do it, and your neighbor shall not do it, but a gentile may do it for you. These are the words of R. Yoshiyah.