Kill it at the door ... - See Leviticus 1:3. Tradition says that the peace-offerings might be killed in any part of the court.
Related Commentaries of Leviticus 3:2
Leviticus 3:2
2 And he shall lay his hand upon the head of his offering, and kill it at the door of the tabernacle of the congregation: and Aaron's sons the priests shall sprinkle the blood upon the altar round about.