Mishnah — Seder Nezikin, Tractate ShevuotChapter 1…
“ It is the same for an Israel, for the Priests, and for the Anointed Priest. And what is the difference between an Israel, the Priests and the Anointed Priest? Only that the blood [service] of the bull atones for the Priests for [their sins involving] the impurity of the Temple and its sacred objects. ”
