Leviticus 8:30

30. The anointing oil For its elements see Exodus 30:23-24. These spices beautifully typify the gifts and graces of the Holy Spirit, which impart no acerbity of disposition, no acid tempers, but only gentle qualities and benevolent affections.

And of the blood Since both oil and blood prefigure, the first the consecration and the second the purifying of the soul, their union typifies the blending of the office of the atoning Saviour, who hath redeemed us by his blood, with that of the Holy Spirit, who transforms and sanctifies by his cleansing power. Hence, since under the Gospel all believers are dignified as priests, we are exhorted to “draw near with a true heart, in full assurance of faith, having our hearts sprinkled from an evil conscience,” by the blood of the Lamb, “and our bodies washed with pure water,” the symbol of purification by the Holy Spirit.

Hebrews 10:22; see Leviticus 14:5, note. Sacrifice for sin alone does not suffice; there must be an inward cleansing by the Spirit. To pardon sin is to leave the house swept and garnished but unoccupied; to fill with the Holy Ghost is to put in a keeper.

Upon Aaron, and upon his garments The person and the garments were sprinkled to prefigure both inward and outward purification, holiness of heart and of life. When the blood and the oil could be connected together, then Aaron and his sons could be anointed and sanctified together. Thus Jesus set himself apart as a bleeding sacrifice for the purchase of the holy unction for all believers, made priests unto God. This explains John 17:19.