Exodus 12:16

On the first day [of the feast] you shall have a holy and solemn assembly, and on the seventh day there shall be another holy and solemn assembly; no work of any kind shall be done on those days, except for the preparation of food which every person must eat—only that may be done by you.

Leviticus 23:7-8

On the first day you shall have a holy convocation (calling together); you shall not do any laborious work [on that day].

Numbers 28:18

On the first day there shall be a holy [summoned] assembly; you shall do no laborious work that day.

Numbers 28:25

On the seventh day you shall have a holy [summoned] assembly; you shall do no laborious work.

Exodus 16:5

And it shall be that on the sixth day, they shall prepare to bring in twice as much as they gather daily [so that they will not need to gather on the seventh day].”

Exodus 16:23

He said to them, “This is what the Lord has said: ‘Tomorrow is a solemn rest, a holy Sabbath to the Lord’; bake and boil what you will bake and boil [today], and all that remains left over put aside for yourselves to keep until morning.”

Exodus 16:29

See, the Lord has given you the Sabbath; therefore He gives you the bread for two days on the sixth day. Let every man stay in his place; no man is to leave his place on the seventh day.”

Exodus 20:10

but the seventh day is a Sabbath [a day of rest dedicated] to the Lord your God; on that day you shall not do any work, you or your son, or your daughter, or your male servant, or your female servant, or your livestock or the temporary resident (foreigner) who stays within your [city] gates.

Exodus 35:2-3

“For six days work may be done, but the seventh day shall be a holy day for you, a Sabbath of complete rest to the Lord; whoever does any kind of work on that day shall be put to death.

Leviticus 23:2-3

“Speak to the children of Israel and say to them, ‘The appointed times (established feasts) of the Lord which you shall proclaim as holy convocations—My appointed times are these:

Leviticus 23:21

On this same day you shall make a proclamation, you are to have a holy convocation (calling together); you shall not do any laborious work [on that day]. It is to be a permanent statute throughout your generations wherever you may be.

Leviticus 23:24-25

“Say to the children of Israel, ‘On the first day of the seventh month (almost October), you shall observe a day of solemn sabbatical rest, a memorial day announced by the blowing of trumpets, a holy convocation.

Leviticus 23:27

“Also the tenth day of this seventh month is the Day of Atonement; it shall be a holy convocation for you, and you shall humble yourselves [by fasting] and present an offering by fire to the Lord.

Leviticus 23:35

The first day is a holy convocation (calling together); you shall not do any laborious work [on that day].

Numbers 29:1

‘On the first day of the seventh month, you shall have a holy [summoned] assembly; you shall do no laborious work. It will be for you a day of blowing the trumpets (the shophar, ram’s horn).

Numbers 29:12

‘Then on the fifteenth day of the seventh month you shall have a holy [summoned] assembly; you shall do no laborious work, and you shall observe a Feast [of Booths] to the Lord for seven days.

Jeremiah 17:21-22

Thus says the Lord, “Pay attention for your own good, [and for the sake of your future] do not carry any load on the Sabbath day or bring anything in through the gates of Jerusalem.

Treasury of Scripture Knowledge

Summary

And in the first day there shall be an holy convocation, and in the seventh day there shall be an holy convocation to you; no manner of work shall be done in them, save that which every man must eat, that only may be done of you.

Bible References

First day

Leviticus 23:2
“Speak to the children of Israel and say to them, ‘The appointed times (established feasts) of the Lord which you shall proclaim as holy convocations—My appointed times are these:
Numbers 28:18
On the first day there shall be a holy [summoned] assembly; you shall do no laborious work that day.
Numbers 29:1
‘On the first day of the seventh month, you shall have a holy [summoned] assembly; you shall do no laborious work. It will be for you a day of blowing the trumpets (the shophar, ram’s horn).

No manner

Exodus 16:5
And it shall be that on the sixth day, they shall prepare to bring in twice as much as they gather daily [so that they will not need to gather on the seventh day].”
Exodus 20:10
but the seventh day is a Sabbath [a day of rest dedicated] to the Lord your God; on that day you shall not do any work, you or your son, or your daughter, or your male servant, or your female servant, or your livestock or the temporary resident (foreigner) who stays within your [city] gates.
Exodus 35:2
“For six days work may be done, but the seventh day shall be a holy day for you, a Sabbath of complete rest to the Lord; whoever does any kind of work on that day shall be put to death.
Jeremiah 17:21
Thus says the Lord, “Pay attention for your own good, [and for the sake of your future] do not carry any load on the Sabbath day or bring anything in through the gates of Jerusalem.

General references

Exodus 13:6
For seven days you shall eat unleavened bread, and on the seventh day there shall be a feast to the Lord.
Exodus 34:18
“You shall observe the Feast of Unleavened Bread (Passover). For seven days you shall eat unleavened bread, as I have commanded you, at the appointed time in the month of Abib; for in the month of Abib you came out of Egypt.
Exodus 35:3
You shall not kindle a fire in any of your dwellings on the Sabbath day.”
Leviticus 23:6
The Feast of Unleavened Bread to the Lord is on the fifteenth day of the same month; for seven days you shall eat unleavened bread.
Numbers 28:17
There shall be a feast on the fifteenth day of this month; unleavened bread shall be eaten for seven days.