Leviticus 16:31

It is a Sabbath of complete rest for you, and you must practice self-denial; it is a permanent statute.

Leviticus 23:32

It will be a Sabbath of complete rest for you, and you must practice self-denial. You are to observe your Sabbath from the evening of the ninth day of the month until the following evening.”

Isaiah 58:5

Will the fast I choose be like this:
A day for a person to deny himself,
to bow his head like a reed,
and to spread out sackcloth and ashes?
Will you call this a fast
and a day acceptable to the Lord?

Exodus 31:15

Work may be done for six days, but on the seventh day there must be a Sabbath of complete rest, dedicated to the Lord. Anyone who does work on the Sabbath day must be put to death.

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 to the Lord. Anyone who does work on it must be executed.

Leviticus 25:4

But there will be a Sabbath of complete rest for the land in the seventh year, a Sabbath to the Lord: you are not to sow your field or prune your vineyard.

Isaiah 58:3

“Why have we fasted, but You have not seen?
We have denied ourselves, but You haven’t noticed!”
“Look, you do as you please on the day of your fast,
and oppress all your workers.

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
It will be a Sabbath of complete rest for you, and you must practice self-denial. You are to observe your Sabbath from the evening of the ninth day of the month until the following evening.”
Leviticus 25:4
But there will be a Sabbath of complete rest for the land in the seventh year, a Sabbath to the Lord: you are not to sow your field or prune your vineyard.
Exodus 31:15
Work may be done for six days, but on the seventh day there must be a Sabbath of complete rest, dedicated to the Lord. Anyone who does work on the Sabbath day must be put to death.
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 to the Lord. Anyone who does work on it must be executed.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.