Adam Clarke's Commentary on the Bible - Hebrews 7:13
For he of whom these things are spoken - That is, Jesus the Messiah, spoken of in Psalm 110:4 , who came, not from the tribe of Levi, but from the tribe of Judah, of which tribe no priest ever ministered at a Jewish altar, nor could minister according to the law. read more
Adam Clarke's Commentary on the Bible - Hebrews 7:12
The priesthood being changed - That is, The order of Aaron being now abrogated, to make way for that which had preceded it, the order of Melchisedec. There is made of necessity a change also of the law - The very essence of the Levitical law consisting in its sacrificial offerings; and as these could not confer perfection, could not reconcile God to man, purify the unholy heart, nor open the kingdom of heaven to the souls of men, consequently it must be abolished, according to the order... read more