Keluaran 29:12

29:12 and take some of the blood of the bull and put it on the horns of the altar ¹  with your finger; all the rest of ²  the blood you are to pour out at the base of the altar.

Imamat 4:7

4:7 The priest must put some of the blood on the horns of the altar of fragrant incense that is before the Lord in the Meeting Tent, and all the rest of the bull’s blood he must pour out at the base of the altar of burnt offering that is at the entrance of the Meeting Tent.

[29:12]  ¹ sn This act seems to have signified the efficacious nature of the blood, since the horns represented power. This is part of the ritual of the sin offering for laity, because before the priests become priests they are treated as laity. The offering is better described as a purification offering rather than a sin offering, because it was offered, according to Leviticus, for both sins and impurities. Moreover, it was offered primarily to purify the sanctuary so that the once-defiled or sinful person could enter (see J. Milgrom, Leviticus [AB]).

[29:12]  ² tn The phrase “rest of” has been supplied in the translation for clarification.