וְעָשִׂ֤יתָ אֹתָהּ֙ קְטֹ֔רֶת רֹ֖קַח מַעֲשֵׂ֣ה רוֹקֵ֑חַ מְמֻלָּ֖ח טָה֥וֹר קֹֽדֶשׁ׃
And thou shalt make of it incense, a perfume after the art of the perfumer, seasoned with salt, pure and holy.
Read midrashic interpretation of Exodus 30:35: and classical rabbinic exegesis.