Christ became man, not angel, to save mankind

^9-12 What we actually see is Jesus, after being made temporarily inferior to the angels (and so subject to pain and death), in order that he should, in God’s grace, taste death for every man, now crowned with glory and honour. It was right and proper that in bringing many sons to glory, God (from whom and by whom everything exists) should make the leader of their salvation a perfect leader through the fact that he suffered. For the one who makes men holy and the men who are made holy share a common humanity. So that he is not ashamed to call them his brothers, for he says: ‘I will declare your name to my brethren; in the midst of the congregation I will sing praise to you’.

¹³ And again, speaking as a man, he says: ‘I will put my trust in him’. And, one more instance, in these words: ‘Here am I and the children whom God has given me’.

^14-18 Since, then, “the children” have a common physical nature as human beings, he also became a human being, so that by going through death as a man he might destroy him who had the power of death, that is, the devil; and might also set free those who lived their whole lives a prey to the fear of death. It is plain that for this purpose he did not become an angel; he became a man, in actual fact a descendant of Abraham. It was imperative that he should be made like his brothers in nature, if he were to become a High Priest both compassionate and faithful in the things of God, and at the same time able to make atonement for the sins of the people. For by virtue of his own suffering under temptation he is able to help those who are exposed to temptation.