Hebrews 7:28

For the law maketh men high priests - The Jewish priests have need of these repeated offerings and sacrifices, because they are fallible, sinful men: but the word of the oath (still referring to Psalm 110:4 ;) which was since the law; for David, who mentions this, lived nearly 500 years after the giving of the law, and consequently that oath, constituting another priesthood, abrogates the law; and by this the Son is consecrated, τετελειωμενον , is perfected, for evermore. Being a high priest without blemish, immaculately holy, every way perfect, immortal, and eternal, He is a priest εις τον αιωνα , to Eternity.

I. There are several respects in which the apostle shows the priesthood of Christ to be more excellent than that of the Jews, which priesthood was typified by that of Melchisedec.