וְשָׁמְר֣וּ אֶת־מִשְׁמַרְתִּ֗י וְלֹֽא־יִשְׂא֤וּ עָלָיו֙ חֵ֔טְא וּמֵ֥תוּ ב֖וֹ כִּ֣י יְחַלְּלֻ֑הוּ אֲנִ֥י יְהוָ֖ה מְקַדְּשָֽׁם׃
They shall therefore keep My charge, lest they bear sin for it, and die therein, if they profane it: I am the LORD who sanctify them.
Read kabbalistic (mystical) interpretation of Leviticus 22:9: and classical mystical sources.