Reference for I Chronicles 9:30

וּמִן־בְּנֵי֙ הַכֹּ֣הֲנִ֔ים רֹקְחֵ֥י הַמִּרְקַ֖חַת לַבְּשָׂמִֽים׃

And some of the sons of the priests prepared the confection of the spices.