וְהַקְּטֹ֙רֶת֙ אֲשֶׁ֣ר תַּעֲשֶׂ֔ה בְּמַ֨תְכֻּנְתָּ֔הּ לֹ֥א תַעֲשׂ֖וּ לָכֶ֑ם קֹ֛דֶשׁ תִּהְיֶ֥ה לְךָ֖ לַיהוָֽה׃
And the incense which thou shalt make, according to the composition thereof ye shall not make for yourselves; it shall be unto thee holy for the LORD.
Read Midrashic interpretations of Exodus 30:37: rabbinic exegesis from Bereshit Rabbah, Shemot Rabbah and classical Midrash sources, free.