Matthew Poole and continuators on Hebrews 7:20

20 And in as much as not without an oath he was made priest .

This is a further Proof of the Excellency of Christ's Priesthood above Aaron's, taken from his Constitution in it by Oath. He who is made a Priest by Oath, is a better, and a greater Priest than any made so without it, but so is Christ. [non-Latin text not transcribed] is a comparative, answered v. 22, insinuating by how much the Cause constituting or confirming an Office of Priesthood is more excellent, by so much the Effect and Office must excel, receiving greater Power for some more excellent end. This [non-Latin text not transcribed] is as much as a double Oath, [non-Latin text not transcribed]. By the swearing of an Oath by God the Father was the Gospel-High-Priest constituted an eternal one after Melchisedec's Order; and it addeth so much the more Strength and Glory to the Sanction. This is testified by David, Psal. 110.4. The Levitical Priests were made by a divine Designation, and with external Rites were consecrated; but Christ was constituted a Priest by Oath, as our Translators well supply it out of the following Verse.