He poured the oil upon Aaron's head In a plentiful manner, as appears from Psalms 133:2, whereas other persons and things were only sprinkled with it; because his unction was to typify the anointing of Christ with the Spirit, which was not given by measure to him. A measure of the same anointing is given to all believers, to all the members of Christ's mystical body, who, by virtue of their union with their living head, partake of those gifts and graces of the Holy Spirit which were in him. Reader, hast thou received a measure of them? Remember, If any man have not the Spirit of Christ he is none of his.
Related Commentaries of Leviticus 8:12
Leviticus 8:12
12 And he poured of the anointing oil upon Aaron's head, and anointed him, to sanctify him.