Leviticus Chapter 23 Details the Observance of Festivals that are to be Observed

Is There Anywhere In The Hebrew Scripture (Old Testament) That G-d Ever Commanded To Refrain From Observing Any Of These Appointed Times?

*These all are part of G-d’s Commandments (Mitzvot) that no man must change or worst abolish.

“Festivals”
“Pesach”
“The Omer”
“Shavuos”
“Rosh Hashanah”
“Yom Kippur”
“Succos and Shemini Atzeres”

Hashem spoke to Moses, saying: Speak to the Children of Israel and say to them: Hashem’s appointed festivals that you are to designate as holy convocations – these are My appointed festivals.
23:1-2
For six days labor may be done, and the seventh day is a day of complete rest, a holy convocation, you shall not do any work; it is a Sabbath for Hashem in all your dwelling places.
23:3
These are the appointed festivals of Hashem, the holy convocations, which you shall designate in their appropriate time.
:4
In the first month on the fourteenth of the month in the afternoon is the time of the pesach-offering to Hashem.
:5
And on the fifteenth day of this month is the Festival of Matzos to Hashem; you shall eat matzos for a seven-day period.
:6
When you reap the harvest of your land, you shall not remove completely the corners of your field as you reap and you shall not gather the gleanings of your harvest; for the poor and the proselyte shall you leave them; I am Hashem, your God.
:22
Hashem spoke to Moses, saying: Speak to the Children of Israel, saying: In the seventh month, on the first of the month, there shall be a rest day for you, a remembrance with shofar blasts, a holy convocation.
:23-24
You shall not do any laborious work, and you shall offer a fire-offering to Hashem.
:25
Hashem spoke to Moses, saying: But on the tenth day of this seventh month it is the Day of Atonement; there shall be a holy convocation for you, and you shall afflict yourselves; you shall offer a fire-offering to Hashem.
:26-27
You shall not do any work on this very day, for it is the Day of Atonement to provide you atonement before Hashem, your God.
:28
For any soul who will not be afflicted on this very day will be cut off from its people.
:29
And any soul who will do any work on this very day, I will destroy that soul from among its people.
:30
You shall not do any work; it is an eternal decree throughout your generations in all your dwelling places.
:31
It is a day of complete rest for you and you shall afflict yourselves; on the ninth of the month in the evening – from evening to evening – shall you rest on your rest day.
:32
… On the fifteenth day of this seventh month is the Festival of Succos, a seven-day period for Hashem.
:34
On the first day is a holy convocation, you shall not do any laborious work.
:35
These are the appointed festivals of Hashem that you shall proclaim as holy convocations, to offer a fire-offering to Hashem: a burnt-offering and its meal-offering, a feast-offering and its libation, each day’s requirement on its day.
:32
Aside from Hashem’s Sabbaths, and aside from your gifts, aside from all your vows, and aside from all your free-will offerings, which you will present to Hashem.
:38
You shall take for yourselves on the first day the fruit of a citron tree, the branches of date palms, twigs of a plaited tree, and brook willows, and you shall rejoice before Hashem, your God, for a seven-day period.
:40
You shall celebrate it as a festival for Hashem, a seven-day period in the year, an eternal decree for your generations; in the seventh month shall you celebrate it.
:41
You shall dwell in booths for a seven-day period; every native in Israel shall dwell in booths.
:42
So that your generations will know that I caused the Children of Israel to dwell in booths when I took them from the land of Egypt; I am Hashem, your God.
:43
And Moses declared the appointed festivals of Hashem to the Children of Israel.
:44

1 And the Lord spoke to Moses, saying,
2 Speak to the children of Israel and say to them: The Lord’s appointed [holy days] that you shall designate as holy occasions. These are My appointed [holy days]:
3 [For] six days, work may be performed, but on the seventh day, it is a complete rest day, a holy occasion; you shall not perform any work. It is a Sabbath to the Lord in all your dwelling places.
4 These are the Lord’s appointed [holy days], holy occasions, which you shall designate in their appointed time:
5 In the first month, on the fourteenth of the month, in the afternoon, [you shall sacrifice] the Passover offering to the Lord.
6 And on the fifteenth day of that month is the Festival of Unleavened Cakes to the Lord; you shall eat unleavened cakes for a seven day period.
7 On the first day, there shall be a holy occasion for you; you shall not perform any work of labor.
8 And you shall bring a fire offering to the Lord for a seven day period. On the seventh day, there shall be a holy occasion; you shall not perform any work of labor.
9 And the Lord spoke to Moses, saying,
10 Speak to the children of Israel and say to them: When you come to the Land which I am giving you, and you reap its harvest, you shall bring to the kohen an omer of the beginning of your reaping.
11 And he shall wave the omer before the Lord so that it will be acceptable for you; the kohen shall wave it on the day after the rest day.
12 And on the day of your waving the omer, you shall offer up an unblemished lamb in its [first] year as a burnt offering to the Lord;
13 Its meal offering [shall be] two tenths [of an ephah] of fine flour mixed with oil, a fire offering to the Lord as a spirit of satisfaction. And its libation [shall be] a quarter of a hin of wine.
14 You shall not eat bread or [flour made from] parched grain or fresh grain, until this very day, until you bring your God’s sacrifice. [This is] an eternal statute throughout your generations in all your dwelling places.
15 And you shall count for yourselves, from the morrow of the rest day from the day you bring the omer as a wave offering seven weeks; they shall be complete.
16 You shall count until the day after the seventh week, [namely,] the fiftieth day, [on which] you shall bring a new meal offering to the Lord.
17 From your dwelling places, you shall bring bread, set aside, two [loaves] [made from] two tenths [of an ephah]; they shall be of fine flour, [and] they shall be baked leavened, the first offering to the Lord.
18 And associated with the bread, you shall bring seven unblemished lambs in their [first] year, one young bull, and two rams these shall be a burnt offering to the Lord, [along with] their meal offering and libations a fire offering [with] a spirit of satisfaction to the Lord.
19 And you shall offer up one he goat as a sin offering, and two lambs in their [first] year as a peace offering._
20 And the kohen shall wave them in conjunction with the first offering bread as a waving before the Lord, along with the two lambs. They shall be holy to the Lord, [and] belong to the kohen.
21 And you shall designate on this very day a holy occasion it shall be for you; you shall not perform any work of labor. [This is] an eternal statute in all your dwelling places throughout your generations.
22 When you reap the harvest of your Land, you shall not completely remove the corner of your field during your harvesting, and you shall not gather up the gleanings of your harvest. [Rather,] you shall leave these for the poor person and for the stranger. I am the Lord, your God.
23 And the Lord spoke to Moses, saying,
24 Speak to the children of Israel, saying: In the seventh month, on the first of the month, it shall be a Sabbath for you, a remembrance of [Israel through] the shofar blast a holy occasion.
25 You shall not perform any work of labor, and you shall offer up a fire offering to the Lord.
26 And the Lord spoke to Moses, saying:
27 But on the tenth of this seventh month, it is a day of atonement, it shall be a holy occasion for you; you shall afflict yourselves, and you shall offer up a fire offering to the Lord.
28 You shall not perform any work on that very day, for it is a day of atonement, for you to gain atonement before the Lord, your God.
29 For any person who will not be afflicted on that very day, shall be cut off from its people.
30 And any person who performs any work on that very day I will destroy that person from amidst its people.
31 You shall not perform any work. [This is] an eternal statute throughout your generations in all your dwelling places.
32 It is a complete day of rest for you, and you shall afflict yourselves. On the ninth of the month in the evening, from evening to evening, you shall observe your rest day.
33 And the Lord spoke to Moses, saying,
34 Speak to the children of Israel, saying: On the fifteenth day of this seventh month, is the Festival of Succoth, a seven day period to the Lord.
35 On the first day, it is a holy occasion; you shall not perform any work of labor.
36 [For] a seven day period, you shall bring a fire offering to the Lord. On the eighth day, it shall be a holy occasion for you, and you shall bring a fire offering to the Lord. It is a [day of] detention. You shall not perform any work of labor.
37 These are God’s appointed [holy days] that you shall designate them as holy occasions, [on which] to offer up a fire offering to the Lord burnt offering and meal offering, sacrifice and libations, the requirement of each day on its day;
38 apart from the Lord’s Sabbaths, and apart from your gifts, and apart from all your vows, and apart from all your donations that you give to the Lord.
39 But on the fifteenth day of the seventh month, when you gather in the produce of the land, you shall celebrate the festival of the Lord for a seven day period; the first day shall be a rest day, and the eighth day shall be a rest day.
40 And you shall take for yourselves on the first day, the fruit of the hadar tree, date palm fronds, a branch of a braided tree, and willows of the brook, and you shall rejoice before the Lord your God for a seven day period.
41 And you shall celebrate it as a festival to the Lord for seven days in the year. [It is] an eternal statute throughout your generations [that] you celebrate it in the seventh month.
42 For a seven day period you shall live in booths. Every resident among the Israelites shall live in booths,
43 in order that your [ensuing] generations should know that I had the children of Israel live in booths when I took them out of the land of Egypt. I am the Lord, your God.
44 And Moses told the children of Israel [these laws] of the Lord’s appointed [holy days].