Leviticus 16:31
It is to be a Sabbath of complete rest for you, and you must humble yourselves. It is a perpetual statute.
Leviticus 23:32
It is a Sabbath of complete rest for you, and you must humble yourselves on the ninth day of the month in the evening, from evening until evening you must observe your Sabbath."
Isaiah 58:5
Is this really the kind of fasting I want? Do I want a day when people merely humble themselves, bowing their heads like a reed and stretching out on sackcloth and ashes? Is this really what you call a fast, a day that is pleasing to the Lord?
Exodus 31:15
Six days work may be done, but on the seventh day is a Sabbath of complete rest, holy to the Lord; anyone who does work on the Sabbath day must surely be put to death.
Exodus 35:2
In six days work may be done, but on the seventh day there must be a holy day for you, a Sabbath of complete rest to the Lord. Anyone who does work on it will be put to death.
Leviticus 25:4
but in the seventh year the land must have a Sabbath of complete rest -- a Sabbath to the Lord. You must not sow your field or prune your vineyard.
Isaiah 58:3
They lament, 'Why don't you notice when we fast? Why don't you pay attention when we humble ourselves?' Look, at the same time you fast, you satisfy your selfish desires, you oppress your workers.