קבלה אויף ויקרא 16:2

Come and see: It is written here, "After the death" and later, "Speak to Aaron your brother...Thus shall Aaron come." (Vayikra 16:2-3). (From the death of the sons of Aharon) commences the warning to each of the priests that they must be mindful of Zot (Eng. 'this' fem.), which is the fear of Hashem.

This is the mystery of the verse,²⁹³Leviticus 16:2 “Speak to Aharon, your brother – he shall not come at all times-b’Kol Eit-בכל עת into the holy Sanctuary.” The meaning of “at all times-b’Kol Eit-בכל עת” is at every time-Et-עת that is a time of bad-Et Ra’ah-עת רעה, when those things that are called “bad-Ra-רע” are connected with “time-Et-עת,” or it could be a time-Et-עת of the times of the external forces, which are called times of impurity-Eetot Tumah-עתות טומאה. For, there are several external times outside the partition, each of which is a time that invites calamity. They too are included in the verse “he shall not come at all times-b’Kol Eit-בכל עת into the holy Sanctuary.”