A sabbath of rest to the land — They were neither to do any work about it, nor expect any harvest from it. All yearly labours were to be intermitted in the seventh year, as much as daily labours on the seventh day.
Related Commentaries of Leviticus 25:4
Leviticus 25:4
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.