What does Leviticus 22:1 mean?

The Lord told Moses to tell Aaron and his sons to be careful with the sacred offerings from the Israelites, so they don't disrespect God's holy name. God is the one who sets these things apart as holy. Leviticus 22:1 - Modern Text Bible

(God wants the priests to treat the offerings with respect, because they're not just food—they represent God's relationship with the people.)