Leviticus 16:31
It's the Sabbath of all Sabbaths for you, so humble yourselves. This is to be a perpetual statute.
Leviticus 23:32
It's a Sabbath of rest for you on which you are to humble yourselves starting the evening of the ninth day of the month. You are to observe your Sabbath from evening to evening."
Isaiah 58:5
"Is this the kind of fast that I have chosen, merely a day for a person to humble himself? Is it merely for bowing down one's head like a bulrush, for lying on sackcloth and ashes? Is this what you call a fast, an acceptable day to the LORD?
Exodus 31:15
Work may be done for six days, but the seventh day is a Sabbath of complete rest, holy to the LORD. Whoever does work on the Sabbath is certainly to die.
Exodus 35:2
For six days work is to be done, but on the seventh day you are to have a holy day, a Sabbath of complete rest in dedication to the LORD. Anyone who does work on that day is to be executed.
Leviticus 25:4
But the seventh year is to be a Sabbath of rest for the land a Sabbath for the LORD. You are not to plant your field or prune your vineyard.
Isaiah 58:3
"Why have we fasted,' they ask, "but you do not see? "Why have we humbled ourselves,' they ask, "but you take no notice?'" "Look! On your fast day you serve your own interest and oppress all your workers.