Clement of Alexandria — on Rev 4:4 (The Stromata Book 6)

“Such an one is in reality a presbyter of the Church, and a true minister (deacon) of the will of God, if he do and teach what is the Lord's; not as being ordained by men, nor regarded righteous because a presbyter, but enrolled in the presbyterate because righteous. And although here upon earth he be not honoured with the chief seat, he will sit down on the four-and-twenty thrones, judging the people, as John says in the Apocalypse.”