Leviticus 25:4

there shall be a Sabbath of complete rest for the land: The idea of the Sabbath is that God rested, so people must rest also (see study note on Leviticus 19:30). This idea also applies to the land.

during the Sabbath year, people did not formally farm or harvest the land. Landowners could gather what naturally grew for their daily household needs. They left any uneaten food for the poor and foreigners (Exodus 23:10–11). What remained provided food for both wild and domestic animals. See also Exodus 21:2; Deuteronomy 15:1–11.

Just as seven days made a week ending in a Sabbath day, every seven years ended with a Sabbath year. After seven Sabbath years, or 49 years, came a special year called the Year of Jubilee. Like so many holy days, these times were meant for reflecting on Israel's shared identity and their relationship with God.

Every Israelite, both free and servant, had a place in God’s kingdom. So, those bound in servitude were set free during the Year of Jubilee (Leviticus 25:39–43). To reduce poverty and protect families, land sales were limited to fifty years. After that, the land returned to the original owner's family or clan.

The land belonged to God, and the Israelites were only "residents" (25:23). But it is unlikely that they actually used these laws. The best land ended up belonging to wealthy landowners (Isaiah 5:8–10; compare Amos 5:11).