as he says also in another place, “You are a priest forever, after the order of Melchizedek.”
6 As he saith in another place, or, elsewhere, etc. Here is expressed more clearly what the Apostle intended. This is a remarkable passage, and indeed the whole Psalm from which it is taken; for there is scarcely anywhere a clearer prophecy respecting Christ’s eternal priesthood and his kingdom.
We have here an account of the nature of the priestly office in general, though with an accommodation to the Lord Jesus Christ. We are told, I. Of what kind of beings the high priest must be. He must be taken from among men; he must be a man, one of ourselves, bone of our bones, flesh of our flesh, and spirit of our spirits...
Commenting on Hebrews 5:1-9
As he saith also in another place,.... Or psalm; namely, in Psa 110:4 that is, the same person, even God the Father; who spake the words before cited, also expressed the following: thou art a priest for ever, after the order of Melchisedec; that the psalm, from whence these words are taken, belongs to the Messiah; see Gill on Mat 22:44 and this very passage...