Leviticus 23:3

The Weekly Sabbath

23:3 “‘Six days work may be done, but on the seventh day there must be a Sabbath of complete rest, a holy assembly. You must not do any work; it is a Sabbath to the Lord in all the places where you live.

Deuteronomy 5:12-14

5:12 Be careful to observe the Sabbath day just as the Lord your God has commanded you. 5:13 You are to work and do all your tasks in six days, 5:14 but the seventh day is the Sabbath of the Lord your God. On that day you must not do any work, you, your son, your daughter, your male slave, your female slave, your ox, your donkey, any other animal, or the foreigner who lives with you, so that your male and female slaves, like yourself, may have rest.

Hebrews 4:9

4:9 Consequently a Sabbath rest remains for the people of God.