וְאֶל־בְּנֵ֥י יִשְׂרָאֵ֖ל תְּדַבֵּ֣ר לֵאמֹ֑ר שֶׁ֠מֶן מִשְׁחַת־קֹ֨דֶשׁ יִהְיֶ֥ה זֶ֛ה לִ֖י לְדֹרֹתֵיכֶֽם׃
And thou shalt speak unto the children of Israel, saying: This shall be a holy anointing oil unto Me throughout your generations.
Read kabbalistic (mystical) interpretation of Exodus 30:31: and classical mystical sources.