זוהר ויקרא — דף יח ע”א

When the priest begins to focus his intention and offer the supernal sacrifice, the right awakens and the left is included within it, everything binds and attaches to one another, and all the worlds above and below are blessed through the priest - therefore he must offer a sacrifice to atone for his sin. Rabbi Yossi asks: if the priest himself sins, who atones for him? Rabbi Yehuda answers - 'he shall atone for himself and for his house,' he atones for himself. Rabbi Chiya explains that when the high priest is prevented from rising to his place because of his sin, another priest offers in his place, just as when one who prays errs, another stands in his place. Rabbi Elazar relates that his father (Rabbi Shimon) would not accept anyone's prayer on Rosh Hashanah or Yom Kippur unless he had purified them three days before, for through his prayer the world is atoned, and likewise for the shofar blast, performed according to its secret. Rabbi Yeisa Saba explains the order of the blasts. On this day Yitzchak, head of the Patriarchs, is crowned; it was on this day he was bound above at the Akedah, which is why that portion is read on this day. Rabbi Elazar: 'and God tested Abraham' alludes to the rectification and perfection of the right. Rabbi Abba expounds 'for God judges' - were it not that Yitzchak's judgment passes through Jacob's place where it is sweetened, woe to the world that would meet his judgment; and the parable of an enraged man restrained at the door by a sage - so Jacob cools the fire of judgment.