ויעש את שמן המשחה קודש, “He made the oil of anointing, holy;” the reason why the Torah adds the adjective קודש when describing the making of this oil, is because it was used to sanctify the Tabernacle, its furnishings, both Aaron’s and his sons’ garments. The incense, on the other hand, is described as being טהור, pure, to tell us that it is subject to being contaminated ritually. Nachmanides writes the reason why the Torah did not spell out the components that the oil of anointing consisted of as it did when Moses was commanded to make it in chapter 30, was that even when Moses was commanded about the making of the oil of anointing and the incense, the Torah did not furnish a complete list of the ingredients. The Torah had contented itself with mentioning “מעשה רוקח,” the work of perfumers. If it was in order to be brief at that time, it was in order to be equally brief when it reports the compliance with the directive.