He that is the high priest - This is the first place where this title is introduced; the title is very emphatic, הכהן הגדול haccohen haggadol, that priest, the great one. For the meaning of כהן cohen, see the note on Genesis 14:18. As the chief or high priest was a representative of our blessed Lord, therefore he was required to be especially holy; and he is represented as God's king among the people.

his father

Leviticus 21:1,2 And the LORD said to Moses, Speak to the priests the sons of Aaron, and say to them...

Numbers 6:7 He shall not make himself unclean for his father, or for his mother, for his brother, or for his sister, when they die...

Numbers 19:14 This is the law, when a man dies in a tent: all that come into the tent, and all that is in the tent, shall be unclean seven days.

Deuteronomy 33:9 Who said to his father and to his mother, I have not seen him; neither did he acknowledge his brothers, nor knew his own children...

Matthew 8:21,22 And another of his disciples said to him, Lord, suffer me first to go and bury my father...

Matthew 12:46-50 While he yet talked to the people, behold, his mother and his brothers stood without, desiring to speak with him...

Luke 9:59,60 And he said to another, Follow me. But he said, Lord, suffer me first to go and bury my father...

Luke 14:26 If any man come to me, and hate not his father, and mother, and wife, and children, and brothers, and sisters...

2 Corinthians 5:16 Why from now on know we no man after the flesh: yes, though we have known Christ after the flesh...

The Section Chap. I. -iii.
The question which here above all engages our attention, and requires to be answered, is this: Whether that which is reported in these chapters did, or did not, actually and outwardly take place. The history of the inquiries connected with this question is found most fully in Marckius's "Diatribe de uxore fornicationum," Leyden, 1696, reprinted in the Commentary on the Minor Prophets by the same author. The various views may be divided into three classes. 1. It is maintained by very many interpreters, …
Ernst Wilhelm Hengstenberg—Christology of the Old Testament