Exodus 23:10
"For six years you are to sow your land and gather in its produce.
Leviticus 25:3-4
Six years you may sow your field, and six years you may prune your vineyard and gather the produce,
Treasury of Scripture Knowledge
Summary
And six years thou shalt sow thy land, and shalt gather in the fruits thereof:
General references
Bible References
General references
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.
Deuteronomy 15:1
At the end of every seven years you must declare a cancellation of debts.