Hebrews 5:10

Greek, rather, "Addressed by God (by the appellation) High Priest." Being formally recognized by God as High Priest at the time of His being "made perfect" (Heb 5:9). He was High Priest already in the purpose of God before His passion; but after it, when perfected, He was formally addressed so.

Here the apostle returns to what he had in Heb 5:6 cited out of Psa 110:1-7, concerning the peculiar order of the priesthood of Christ, that is, the order of Melchisedec. And here, I. He declares he had many things which he could say to them concerning this mysterious person called Melchisedec, whose priesthood was eternal, and therefore the salvation procured thereby should be eternal also. We have a more particular account of this Melchisedec in ch. 7. Some think the things which the apostle means, that were hard to be uttered, were not so much concerning Melchisedec himself as concerning Christ, of whom Melchisedec was the type. And doubtless this apostle had many things to say concerning Christ that were very mysterious, hard to be uttered; there are great mysteries in the person and offices of the Redeemer; Christianity is the great mystery of godliness. II. He assigns the reason why he did not say all those things concerning Christ, our Melchisedec, that he had to say, and what it was that made it so difficult for him to utter them, namely, the dulness of the Hebrews to whom he wrote: You are dull of hearing. There is a difficulty in the things themselves, and there may be a weakness in the ministers of the gospel to speak clearly about these things; but generally the fault is in the hearers. Dull hearers make the preaching of the gospel a difficult thing, and even many who have some faith are but dull hearers, dull of understanding and slow to believe; the understanding is weak, and does not apprehend these spiritual things; the memory is weak, and does not retain them. III. He insists upon the faultiness of this infirmity of theirs. It was not a mere natural infirmity, but it was a sinful infirmity, and more in them than others, by reason of the singular advanta…

5:10 a High Priest in the order of Melchizedek: See 7:1-28.