Matthew Poole and continuators on Hebrews 5:10

10 Called of God an high priest after the order of Melchisedeck .

His Constitution by God the Father in his Office, maketh it so effectual; he was solemnly proclaimed and declared to be what God had constituted him. God nameth or calleth things as they are, and as he hath made them; and this was done openly, and with the most illustrious Solemnity at his Ascension into Heaven, when God sate him down on his Right Hand in the presence of all the surrounding Angels, who did all submit to him as their Head and King, and acknowledge him as the great Royal High Priest of God, as was foretold, Psal. 110.1, 2. which Words of the Psalmist the Spirit further explaineth in ch. 7. where he proves this Gospel-High-Priest to be of a more excellent order than Aaron's, even like that of Melchisedeck which it exceedeth, and which must last for ever.