Leviticus 25:1-4

While Moses was on Mount Sinai, the LORD said to him, “Give the following instructions to the people of Israel. When you have entered the land I am giving you, the land itself must observe a Sabbath rest before the LORD every seventh year. For six years you may plant your fields and prune your vineyards and harvest your crops, but during the seventh year the land must have a Sabbath year of complete rest. It is the LORD’s Sabbath. Do not plant your fields or prune your vineyards during that year.