Reply To: Chidushim on Daf Yomi Shabbos 30

שבת סט,ב

The gemora says that every day he can work for his sustenance even shabbos. I heard this is the meaning of זכור את יום השבת לקדשו if you remember shabbos to keep it holy. then ששת ימים תעבד ועשית כל מלאכתך you can work six days and do all the work without having to refrain from doing more than your sustenance, ויום השביעי שבת לה’ אלקיך and the seventh day is shabbos for Hashem your G-d ךא תעשה כל מלאכה you won’t have to do any work even for sustenance.
The GRA explains that the word ‘אות היא ‘לעלם in ושמרו is missing a vov to tell us the alternate meaning of hidden
that if shabbos will be hidden and forgotten when it is, then count six days and celebrate as shabbos the seventh day as shabbos like the day of creation.