which

Leviticus 8:14-17
Moses then brought the bull near for the sin offering, and Aaron and his sons laid their hands on its head. . . .

Hebrews 9:7
But only the high priest entered the inner room, and then only once a year, and never without blood, which he offered for himself and for the sins the people had committed in ignorance.

an atonement for himself

Leviticus 9:7
Then Moses said to Aaron, "Approach the altar and sacrifice your sin offering and your burnt offering to make atonement for yourself and for the people. And sacrifice the people's offering to make atonement for them, as the LORD has commanded."

Ezra 10:18, 19
Among the descendants of the priests who had married foreign women were found these descendants of Jeshua son of Jozadak and his brothers: Maaseiah, Eliezer, Jarib, and Gedaliah. . . .

Job 1:5
And when the days of feasting were over, Job would send for his children to purify them, rising early in the morning to offer burnt offerings for all of them. For Job thought, "Perhaps my children have sinned and cursed God in their hearts." This was Job's regular practice.

Ezekiel 43:19, 27
You are to give a young bull from the herd as a sin offering to the Levitical priests who are of the family of Zadok, who approach Me to minister before Me, declares the Lord GOD. . . .

Hebrews 5:2
He is able to deal gently with those who are ignorant and misguided, since he himself is beset by weakness.