He shall not go in to any dead bodies nor make himself unclean, even for his father or for his mother.
More was expected from a priest than from other people, but more from the high priest than from other priests, because upon his head the anointing oil was poured, and he was consecrated to put on the garments (Lev 21:10), both which were typical of the anointing and adorning of the Lord Jesus, with all the gifts and graces of the Holy Spirit, which he received without measure.
Commenting on Leviticus 21:10-15
Neither shall he go in to any dead body,.... That is, into a tent or house where any dead body lies, as Jarchi and Aben Ezra interpret it, for whoever went into such a place was unclean seven days; and so long therefore an high priest, should he enter there, would be prevented doing the duty of his office, see Num 19:14; this was aped...
Lev 21:10-12 The high priest was to maintain a spotless purity in a higher degree still. He, whose head had been anointed with oil, and who had been sanctified to put on the holy clothes (see Lev 8:7-12 and Lev 7:37), was not to go with his hair flying loose when a death had taken place, nor to rend his clothes (see Lev 10:6), nor...
Commenting on Leviticus 21:10-12