How is it that he is called the High Priest of that year, when God appointed one hereditary High Priest? This was owing to the ambition and contention of parties amongst the Jews themselves, which had ended in the appointment of several High Priests, who took the office in turn, year by year. And sometimes even there seems to have been more than one in office.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Tr. xlix