Leviticus 21:12 - Matthew Poole's English Annotations on the Holy Bible

Out of the sanctuary, to wit, to attend the funerals of any person; for upon other occasions he might and did commonly go out. Nor profane the sanctuary; either by making the service thereof give place to the discharge of his passions, or the performance of a civility, or by entering into the sanctuary before the seven days allotted for his cleansing \Numbers 19:11\ were expired. The crown of the anointing oil, i.e. the anointing oil, which to him was instead of a crown, by which he was advanced not only above the rest of his brethren, but even above all the people, whose chief governor he was in the things of God, though subject and accountable to the civil magistrate, by which also he was made an eminent type of Christ, who was to be King and Priest. Or, the crown, to wit, the golden plate, which is called the holy crown, Exodus 29:6, and the anointing oil of his God are upon him. So there is only an ellipsis of the conjunction and, which is frequent, as Psalms 144:9 Isaiah 63:11 Habakkuk 3:11, &c. And these two things being most eminent, are put for the rest, and the sign is put for the thing signified, q.d. for he is God's high priest. Or, the consecration (for so nezer signifies) of the anointing oil, which by an hypallage may be put for the anointing oil of the consecration, i.e. whereby he is consecrated, is upon him; i.e. though that action be past, yet the virtue of it remains still upon him; he is a sacred person in the highest degree, and therefore not to defile himself in any kind.