Tosefta sobre Levítico 21:10

It is a commandment that the High Priest ("Kohen Gadol") be greater ("gadol") than his brothers, in prophecy, in strength, in wealth, in wisdom, and in appearance. Where is it derived that if he lacks these, that his brothers should [take it upon themselves to] make him great? As it is said (Lev. 21:10): "And the Kohen who is greater ("gadol") than his brothers [etc.]" -- that his brothers make him great. They said of Pinchas the Man of Chavata, upon whom the lot fell to become the High Priest, that the Temple treasurers and officers went looking for him and they found that he was a stone-cutter, and on his account they filled up the quarry [where he was working] with gold dinars. Said Rabbi Chananiah ben Gamaliel, "Was he really a stone-cutter? Rather, he was our son-in-law, and they found him plowing, just as it is said of Elisha (1 Kings 19:19), 'There were twelve yokes of oxen [ahead of him], and he was the twelfth.'" When there became many kings, they decreed that Kohanim would be appointed [as High Priests], and they would set them aside [for appointment] each and every year.

These are the differences between the High Priest and a common priest: The bull that is offered for [the inadvertent transgression of] any commandment, and the bull brought on Yom Kippur, and the tenth of the ephah (Hor. 3:4). [The High Priest does not] grow his hair long [when in mourning] and [he] does not rend his garments [in the way that ordinary mourners do]. But [the High Priest] rends his garments from below [when in mourning], and the common priest [rends his garments] from above. [The High Priest] is not rendered impure by the death of his close relatives; and he is commanded to marry a virgin; and his is forbidden to marry a widow; and [his death permits] the return of the [accidental] killer [from a city of refuge], and he may sacrifice [when he is] an onen (a mourner on the first day of mourning, before the burial), but he may not eat from sacrifices or take a portion of them [on that day]; and he has the first [right] to sacrifice; and he takes his portion [of the sacrifice] first; and all the services performed on Yom Kippur are not valid unless [performed] by him; and he is exempt from [bringing an offering for inadvertently rendering] impure the Temple or the sacred utensils. And all of these (i.e., the aforementioned list) are conducted by a former [High Priests wearing] many vestments [and not only to High Priests who were anointed, who served during the First Temple period]; except as to the bull offered for [the inadvertent transgression of] any commandment, and none of them apply to an anointed [High Priest] for war, except for the five things that were explained, as written in the chapter [on the High Priest, Lev. 21:10-15]: he does not let his hair grow long [when in mourning]; he does not rend [his garments in the way that ordinary mourners do]; he is not rendered impure by the death of his close relatives; and he is commanded to marry a virgin; and his is forbidden to marry a widow; and [his death permits] the return of the [accidental] killer [from a city of refuge], the words of Rabbi Meir. And the Sages say, [his death does not permit] the return of the [accidental] killer.