(21) Take of the blood . . . and of the anointing oil.--The twofold sprinkling, with blood and with oil, denoted the necessity of a twofold holiness--that of justification by the atoning blood of Christ, and that of sanctification by the outpouring of the Holy Spirit. The anointing which is here spoken of seems to have been the only anointing received by the sons of Aaron. (See Leviticus 8:30.)

Verse 21. - Thou shalt take of the blood... . and of the anointing oil. Apparently, this is the only unction that the ordinary priests were to receive. (Compare Leviticus 8:30.) The mixture of the blood with the oil is unusual, and presents some difficulties; but perhaps it is best to view it as symbolising the intimate union which exists between justification and sanctification - the atoning blood, and the sanctifying grace of the Holy Spirit. And sprinkle it. The verb is different from that used in ver. 16, and is rightly rendered, "sprinkle." He shall be hallowed and his garments. As the garments shared in the sprinkling, they shared also, so far as was possible, in the consecration. It was hence especially that they became "holy garments."

29:1-37 Aaron and his sons were to be set apart for the priest's office, with ceremony and solemnity. Our Lord Jesus is the great High Priest of our profession, called of God to be so; anointed with the Spirit, whence he is called Messiah, the Christ; clothed with glory and beauty; sanctified by his own blood; made perfect, or consecrated through sufferings, Heb 2:10. All believers are spiritual priests, to offer spiritual sacrifices,And thou shalt take of the blood that is upon the altar,.... Not that which was sprinkled upon it, which could not be gathered up in such quantities as to be sprinkled again; but which was in a basin on it, having been received into it when the ram was slain:

and of the anointing oil; hereafter to be made, and with which Aaron was anointed as soon as he had his garments on; and this is a different anointing from that that was poured on his head; this was sprinkled on his garments, as follows:

and sprinkle it upon Aaron; both the blood and the oil:

and upon his garments; the note of Aben Ezra is, under the garments of Aaron, and on his garments, as if they were sprinkled within and without:

and upon his sons, and upon the garments of his sons with him; at his first unction his sons do not seem to have been anointed at all, but now they and their garments are sprinkled both with blood and oil; denoting both the justification of the priests of the Lord by the blood of Christ, and the sanctification of them by the Spirit, and the need that both their persons and their actions stand in of cleansing by them both:

and he shall be hallowed, and his garments, and his sons, and his sons' garments with him: all should be holy in a ceremonial sense, and devoted to holy uses and services; see Psalm 45:8.