Leviticus 22:29-31

New Revised Standard Version, Anglicised Catholic Edition

²⁹ When you sacrifice a thanksgiving-offering to the Lord, you shall sacrifice it so that it may be acceptable in your behalf. ³⁰ It shall be eaten on the same day; you shall not leave any of it until morning: I am the Lord.

³¹ Thus you shall keep my commandments and observe them: I am the Lord.