Keluaran 30:10

30:10 Aaron is to make atonement on its horns once in the year with some of the blood of the sin offering for atonement; ¹  once in the year ²  he is to make atonement on it throughout your generations. It is most holy to the Lord.” ³ 

Ibrani 9:7

9:7 But only the high priest enters once a year into the inner tent, ⁴  and not without blood that he offers for himself and for the sins of the people committed in ignorance. ⁵ 

[30:10]  ¹ tn The word “atonements” (plural in Hebrew) is a genitive showing the result or product of the sacrifice made.

[30:10]  ² sn This ruling presupposes that the instruction for the Day of Atonement has been given, or at the very least, is to be given shortly. That is the one day of the year that all sin and all ritual impurity would be removed.

[30:10]  ³ sn The phrase “most holy to the Lord” means that the altar cannot be used for any other purpose than what is stated here.

[9:7]  ⁴ tn Grk “the second tent.”

[9:7]  ⁵ tn Or perhaps “the unintentional sins of the people”; Grk “the ignorances of the people.” Cf. BDAG 13 s.v. ἀγνόημα, “sin committed in ignorance/unintentionally.” This term seems to be simply a synonym for “sins” (cf. Heb 5:2) and does not pick up the distinction made in Num 15:22-31 between unwitting sin and “high-handed” sin. The Day of Atonement ritual in Lev 16 covered all the sins of the people, not just the unwitting ones.