Leviticus 25:1-7 (King James Version)
Sabbath Years and the Year of Jubilee
25And the Lord spake unto Moses in mount Sinai, saying, 2 Speak unto the children of Israel, and say unto them, When ye come into the land which I give you, then shall the land keep  a sabbath unto the Lord. 3 Six years thou shalt sow thy field, and six years thou shalt prune thy vineyard, and gather in the fruit thereof; 4 But in the seventh year shall be a sabbath of rest unto the land, a sabbath for the Lord: thou shalt neither sow thy field, nor prune thy vineyard. 5 That which groweth of its own accord of thy harvest thou shalt not reap, neither gather the grapes of thy vine undressed: for it is a year of rest unto the land. 6 And the sabbath of the land shall be meat for you; for thee, and for thy servant, and for thy maid, and for thy hired servant, and for thy stranger that sojourneth with thee, 7 And for thy cattle, and for the beast that are in thy land, shall all the increase thereof be meat.
25:2 keep: Heb. rest