You are to slaughter the young bull before the Lord, and then Aaron’s sons the priests shall bring the blood and splash it
against the sides of the altar at the entrance to the tent of meeting. Leviticus 1:5
The priest is to splash the blood against the altar of
the Lord at the entrance to the tent of meeting and burn the fat as an aroma pleasing to the Lord. Leviticus 17:6
The sight of blood sickens people and the scene at the
altar was a bloodbath, not meant to be pretty.
The reason for the blood was sin and the sacrificial acts were meant to
create a horrifying scene caused by sin to deter people from sinning.
The blood was distributed (splashed or thrown) to cover
the altar to show the complete forgiveness of sin. The altar was a holy space and the blood of
the sacrifice completely covered it. The
forgiveness was covered on all “sides.”