Before the Lord; that is, before the holy of holies, where the Lord was in a more special manner present; namely, the altar of incense, as before, Leviticus 4:7.
Related Commentaries of Leviticus 4:18
Leviticus 4:18
18 And he shall put some of the blood upon the horns of the altar which is before the LORD, that is in the tabernacle of the congregation, and shall pour out all the blood at the bottom of the altar of the burnt offering, which is at the door of the tabernacle of the congregation.