Exodus 35:3

You shall not kindle a fire in any of your dwellings on the sabbath day.”

Exodus 16:23

then he said to them, “This is what the Lord meant: Tomorrow is a sabbath observance, a holy sabbath to the Lord. Bake what you will bake and boil what you will boil, and all that is left over put aside to be kept until morning.”

Exodus 12:16

On the first day you shall have a holy assembly, and another holy assembly on the seventh day; no work at all shall be done on them, except what must be eaten by every person, that alone may be prepared by you.

Numbers 15:32-36

Now while the sons of Israel were in the wilderness, they found a man gathering wood on the sabbath day.

Isaiah 58:13

“If because of the sabbath, you turn your foot
From doing your own pleasure on My holy day,
And call the sabbath a delight, the holy day of the Lord honorable,
And honor it, desisting from your own ways,
From seeking your own pleasure
And speaking your own word,

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