Exodus 29:11
You are to kill the bull before the Lord at the entrance to the tent of meeting
Exodus 29:4
"You are to present Aaron and his sons at the entrance of the tent of meeting. You are to wash them with water
Leviticus 1:3-5
"'If his offering is a burnt offering from the herd he must present it as a flawless male; he must present it at the entrance of the Meeting Tent for its acceptance before the Lord.
Leviticus 8:15
and he slaughtered it. Moses then took the blood and put it all around on the horns of the altar with his finger and decontaminated the altar, and he poured out the rest of the blood at the base of the altar and so consecrated it to make atonement on it.
Leviticus 9:8
So Aaron approached the altar and slaughtered the sin offering calf which was for himself.
Leviticus 9:12
He then slaughtered the burnt offering, and his sons handed the blood to him and he splashed it against the altar's sides.