בַּיּ֤וֹם הַהוּא֙ יֵאָכֵ֔ל לֹֽא־תוֹתִ֥ירוּ מִמֶּ֖נּוּ עַד־בֹּ֑קֶר אֲנִ֖י יְהוָֽה׃
On the same day it shall be eaten; ye shall leave none of it until the morning: I am the LORD.
Read kabbalistic (mystical) interpretation of Leviticus 22:30: and classical mystical sources.