Hebrews 2:16-17
“For verily He takes not hold of Angels, but of the seed of Abraham He takes hold. Wherefore in all things it behooved Him to be made like His brethren.”
1. Paul wishing to show the great kindness of God towards man, and the Love which He had for the human race, after saying: “Forasmuch then as the children were partakers of blood and flesh, He also Himself likewise took part of the same” — follows up the subject in this passage. For do not regard lightly what is spoken, nor think this merely a slight [matter], His taking on Him our flesh. He granted not this to Angels; “For verily He takes not hold of Angels, but of the seed of Abraham.” What is it that he says? He took not on Him an Angel's nature, but man's. But what is “He takes hold of”? He did not (he means) grasp that nature, which belongs to Angels, but ours. But why did he not say, “He took on Him,” but used this expression, “He takes hold of”? It is derived from the figure of persons pursuing those who turn away from them, and doing everything to overtake them as they flee, and to take hold of them as they are bounding away. For when human nature was fleeing from Him, and fleeing far away, He pursued after and overtook us. He showed that He has done this only out of kindness, and love, and tender care. As then when he says, “Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation” — he shows His extreme interest in behalf of human nature, and that God makes great account of it, so also in this place he sets it forth much more by a comparison, for he says, “He takes not hold of angels.” For in very deed it is a great and a wonderful thing, and full of amazement that our flesh should sit on high, and be adored by Angels and Archangels, by the Cherubim and the Seraphim. For myself having oftentimes thought upon this, I am amazed at it, and imagine to myself great things concerning the human race. For I see that the introductions are great and splendid, and that God has great zeal on behalf of our nature.
Moreover he said not “of men (simply) He takes hold,” but wishing to exalt them [the Hebrews] and to show that their race is great and honorable, he says, “but of the seed of Abraham He takes hold.”
“Wherefore it behooved [Him] in all things to be made like His brethren.” What is this, “in all things”? He was born (he means), was brought up, grew, suffered all things necessary, at last He died. This is, “in all things to be made like His brethren.” For after he had discoursed much concerning His majesty and the glory on high, he then begins concerning the dispensation. And consider with how great power [he does this]. How he represents Him as having great zeal “to be made like us”: which was a sign of much care. For having said above, “Inasmuch then as the children were partakers of flesh and blood, He also Himself in like manner took part of the same”; in this place also he says, “in all things to be made like His brethren.” Which is all but saying, He that is so great, He that is “the brightness of His glory,” He that is “the express image of His person,” He that “made the worlds,” He that “sits on the right hand of the Father,” He was willing and earnest to become our brother in all things, and for this cause did He leave the angels and the other powers, and come down to us, and took hold of us, and wrought innumerable good things. He destroyed Death, He cast out the devil from his tyranny, He freed us from bondage: not by brotherhood alone did He honor us, but also in other ways beyond number. For He was willing also to become our High Priest with the Father: for he adds,
2. “That He might become a merciful and faithful High Priest in things pertaining to God.” For this cause (he means) He took on Him our flesh, only for Love to man, that He might have mercy upon us. For neither is there any other cause of the economy, but this alone. For He saw us, cast on the ground, perishing, tyrannized over by Death, and He had compassion on us. “To make reconciliation,” he says, “for the sins of the people. That He might be a merciful and faithful High Priest.”
What is “faithful”? True, able. For the Son is a faithful High Priest, able to deliver from their sins those whose High Priest He is. In order then that He might offer a sacrifice able to purify us, for this cause He has become man.
Accordingly he added, “in things pertaining to God,”— that is, for the sake of things in relation to God. We had become altogether enemies to God, (he would say) condemned, degraded, there was none who should offer sacrifice for us. He saw us in this condition, and had compassion on us, not appointing a High Priest for us, but Himself becoming a High Priest. In what sense He was “faithful,” he added [viz.], “to make reconciliation for the sins of the people.”
Source: Homilies on the Epistle to the Hebrews (New Advent)