Leviticus 16:31

And this is a Sabbath of Sabbath to you, and ye humbled your souls, a law forever.

Leviticus 23:32

A Sabbath of rest it is to you; ye humbled your souls: in the ninth of the month, in the evening, from evening to evening shall ye celebrate your Sabbath.

Isaiah 58:5

Will this be the fast I shall choose? a day for a man to humble his soul? to bend his head as a bulrush, and he will place sackcloth and ashes? wilt thou call this a fast and a day of acceptance to Jehovah.

Exodus 31:15

Six days shall work be done, and the seventh day the Sabbath, a holy rest to Jehovah: all doing work in the day of the Sabbath, dying, shall die.

Exodus 35:2

Six days thou shalt do work and in the seventh day a holy cessation, a cessation to Jehovah: all doing work in it shall die.

Leviticus 25:4

And in the seventh year, a Sabbath of rest shall be to the land, a Sabbath to Jehovah: thy field thou shalt not sow, and thy vineyard thou. shalt not prune.

Isaiah 58:3

For what did we fast, and thou sawest not? we humbled our soul and thou wilt not know? Behold, in the day of your fasting ye will find desire, and ye will exact all your labors.

Treasury of Scripture Knowledge

Summary

It shall be a sabbath of rest unto you, and ye shall afflict your souls, by a statute for ever.

Bible References

General references

Leviticus 23:32
A Sabbath of rest it is to you; ye humbled your souls: in the ninth of the month, in the evening, from evening to evening shall ye celebrate your Sabbath.
Leviticus 25:4
And in the seventh year, a Sabbath of rest shall be to the land, a Sabbath to Jehovah: thy field thou shalt not sow, and thy vineyard thou. shalt not prune.
Exodus 31:15
Six days shall work be done, and the seventh day the Sabbath, a holy rest to Jehovah: all doing work in the day of the Sabbath, dying, shall die.
Exodus 35:2
Six days thou shalt do work and in the seventh day a holy cessation, a cessation to Jehovah: all doing work in it shall die.