"Six days you shall work, but on the seventh day you shall rest; in plowing time and in harvest you shall rest.
Exodus 34:21
Surrounding context
34:20 But the firstborn of a donkey you shall redeem with a lamb. And if you will not redeem him, then you shall break his neck. All the firstborn of your sons you shall redeem. "And none shall appear before Me empty-handed.
34:21 "Six days you shall work, but on the seventh day you shall rest; in plowing time and in harvest you shall rest.
34:22 "And you shall observe the Feast of Weeks, of the firstfruits of wheat harvest, and the Feast of Ingathering at the year's end.