This is the reason why the Aaronical priests had need to sacrifice for themselves, and the gospel High Priest had not, and is finally describing him who is so. For the law maketh men high priests which have infirmity; for the law which God gave to Moses, the ceremonial law, constituteth, sets up, and puts into this Aaronical order and office of priesthood, such as are not only liable to bodily infirmities, but to moral ones, sins. Aaron and all his sons had their spiritual sinful infirmities, Hebrews 5:2, for which they were to offer their propitiatory sacrifices to God, as well as for those of the people; they were sinful, dying men, Hebrews 7:26. But the word of the oath, which was since the law; but God the Father's promise to his Son, ratified with an oath, that he should he the great High Priest perfecting of souls for God, as David testifieth, Psalms 110:4, to be revealed to him; and this four hundred years after the law was given which constituted the Aaronical priesthood. The word revealed God's promise to him, the oath made it irreversible; yet this promise was not actually performed to him till his ascension in the human nature higher than the heavens, Psalms 110:1. Maketh the Son, who is consecrated for evermore; God the Son incarnate, the man Christ God's fellow, the glorious only begotten and bosom Son of the Father, Malachi 13:7 1 Thessalonians 1:14,18 1 Timothy 2:5, is made by this ratified word the only single everlasting High Priest, who is not only completely and perfectly holy, as opposed to the infirmities of the Aaronical priests, but ever able and fit for his work, as successful in it. Who would not therefore leave that abolished priesthood, and cleave to this which must abide for ever?
Related Commentaries of Hebrews 7:28
Hebrews 7:28
28 For the law maketh men high priests which have infirmity; but the word of the oath, which was since the law, maketh the Son, who is consecratedc for evermore.