Leviticus 16:31
That day is to be a very holy day, one on which they fast and do no work at all. These regulations are to be observed for a long lasting time to come.
Leviticus 23:32
It is a day of worship (sabbath), a day when you do not work. Humble yourselves starting on the evening of the ninth day of the month. From that evening to the next, observe the day of worship.
Isaiah 58:5
Is it a fast like this which I choose, a day for a man to humble himself? Is it for bowing one's head like a reed (rush) and for spreading out sackcloth and ashes as a bed? Will you call this a fast, even an acceptable day to Jehovah?
Exodus 31:15
Work may be done for six days. The seventh day there is a Sabbath of complete rest. It is holy to Jehovah. Whoever does any work on the Sabbath day will definitely be put to death.
Exodus 35:2
You may work for six days. The seventh day is a holy day of worship (a Sabbath). It is a day when you do not work. It is dedicated to Jehovah. Whoever does any work on this day should be put to death.
Leviticus 25:4
But the seventh year is to be a sabbath year of complete rest for the land. It is a year dedicated to Jehovah. Do not plant your fields or prune your vineyards.
Isaiah 58:3
Why have we fasted and you do not see? Why have we humbled ourselves and you do not notice? Behold, on the day of your fast you find desire, and mistreat all your workers.'