Exodus 23:12

10“For six years you shall sow your land, and shall gather in its increase,

11but the seventh year you shall let it rest and lie fallow, that the poor of your people may eat; and what they leave the animal of the field shall eat. In the same way, you shall deal with your vineyard and with your olive grove.

12“Six days you shall do your work, and on the seventh day you shall rest, that your ox and your donkey may have rest, and the son of your servant, and the alien may be refreshed.

13“Be careful to do all things that I have said to you; and don’t invoke the name of other gods or even let them be heard out of your mouth.

14“You shall observe a feast to me three times a year.