On the first day there will be a holy convocation, and on the seventh day there will be a holy convocation for you. You must do no work of any kind on them, only what every person will eat– that alone may be prepared for you.
TSK
TSK · Isaiah 1:13
Treasury of Scripture Knowledge references in NET.
I will lay your cities waste and make your sanctuaries desolate, and I will refuse to smell your soothing aromas.
This is the burnt offering for every Sabbath, besides the continual burnt offering and its drink offering.
The Passover-Unleavened Bread Festival Observe the month Abib and keep the Passover to the LORD your God, for in that month he brought you out of Egypt by night.
and whenever burnt sacrifices were offered to the LORD on the Sabbath and at new moon festivals and assemblies. A designated number were to serve before the LORD regularly in accordance with regulations.
“I have meat from my peace offerings at home; today I have fulfilled my vows!
The one who slaughters a bull also strikes down a man; the one who sacrifices a lamb also breaks a dog’s neck; the one who presents an offering includes pig’s blood with it; the one who offers incense also praises an idol. They have decided to behave this way; they enjoy these disgusting practices.
ו(Vav) He destroyed his temple as if it were a vineyard; he destroyed his appointed meeting place. The LORD has made those in Zion forget both the festivals and the Sabbaths. In his fierce anger he has spurned both king and priest.
Announce a holy fast; proclaim a sacred assembly. Gather the elders and all the inhabitants of the land to the temple of the LORD your God, and cry out to the LORD.
“I wish that one of you would close the temple doors, so that you no longer would light useless fires on my altar. I am not pleased with you,” says the LORD of Heaven’s Armies,“and I will no longer accept an offering from you.
“But woe to you Pharisees! You give a tenth of your mint, rue, and every herb, yet you neglect justice and love for God! But you should have done these things without neglecting the others.
And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.