Leviticus 21:1

Rules for the Priests

21:1 The Lord said to Moses: “Say to the priests, the sons of Aaron – say to them, ‘For a dead person no priest is to defile himself among his people,

Leviticus 25:2

25:2 “Speak to the Israelites and tell them, ‘When you enter the land that I am giving you, the land must observe a Sabbath to the Lord.