Exodus 23:10-12

10For six years you are to sow your land and gather its produce, 11but in the seventh year you must let it rest and lie fallow, so that the poor among your people may eat from the field and the wild animals may consume what they leave. Do the same with your vineyard and olive grove.

12For six days you are to do your work, but on the seventh day you must cease, so that your ox and your donkey may rest and the son of your maidservant may be refreshed, as well as the foreign resident.