Exodus 29:16
Slaughter it and take the blood and splash it against the sides of the altar. The burnt offering blood is splashed against the sides of the altar — not applied to the horns as the sin offering blood was, but splashed broadly. The different treatment of the blood signals the different function of the sacrifice: the sin offering's blood on the horns addresses the altar's need for atonement; the burnt offering's blood splashed against the sides addresses the offering's dedication. The splash of blood covers the altar's surface with the mark of consecration. The priests who have been washed and clothed are now serving at an altar that has been consecrated by their own ordination offerings.