Exodus 23:11

but the seventh year thou shalt leave it free and release it, that the poor of thy people may eat, and what they leave the beasts of the field shall eat. In like manner thou shalt deal with thy vineyard and with thy oliveyard.

Leviticus 25:2-7

Speak unto the sons of Israel and say unto them, When ye have come into the land which I give you, then shall the land keep a sabbath unto the LORD.

Leviticus 25:11-12

A jubilee shall that fiftieth year be unto you; ye shall not sow nor reap that which grows of itself in it nor fence in thy consecrated vine.

Leviticus 25:20

And if ye shall say, What shall we eat the seventh year? behold, we shall not sow nor gather in our fruits,

Leviticus 25:22

And ye shall sow the eighth year and eat yet of old fruit; until the ninth year, until her fruits come in ye shall eat of the old store.

Leviticus 26:34-35

Then shall the land rest for her sabbaths all the days that it lies desolate, while you are in your enemies' land; even then shall the land rest and enjoy her sabbaths.

Treasury of Scripture Knowledge

Summary

But the seventh year thou shalt let it rest and lie still; that the poor of thy people may eat: and what they leave the beasts of the field shall eat. In like manner thou shalt deal with thy vineyard, and with thy oliveyard.

General references

Bible References

The seventh

Leviticus 25:2
Speak unto the sons of Israel and say unto them, When ye have come into the land which I give you, then shall the land keep a sabbath unto the LORD.
Leviticus 26:34
Then shall the land rest for her sabbaths all the days that it lies desolate, while you are in your enemies' land; even then shall the land rest and enjoy her sabbaths.

General references

Leviticus 25:4
but the seventh year the land shall have a sabbath of rest, a sabbath unto the LORD: thou shalt neither sow thy field nor prune thy vineyard.
Deuteronomy 15:1
At the end of every seven years thou shalt make a release.