וְהַכֹּהֵ֨ן הַמָּשִׁ֧יחַ תַּחְתָּ֛יו מִבָּנָ֖יו יַעֲשֶׂ֣ה אֹתָ֑הּ חָק־עוֹלָ֕ם לַיהוָ֖ה כָּלִ֥יל תָּקְטָֽר׃
And the anointed priest that shall be in his stead from among his sons shall offer it, it is a due for ever; it shall be wholly made to smoke unto the LORD.
Read kabbalistic (mystical) interpretation of Leviticus 6:15: and classical mystical sources.