Leviticus 4:4

And he shall bring the bullock unto the door of the
tabernacle of the congregation before the Lord
As the bullock of the burnt offering; (See Gill on Leviticus 1:3):

and shall lay his hand on the bullock's head;
the Targum of Jonathan says his right hand; (See Gill on Leviticus 1:4):

and kill the bullock before the Lord;
at the door of the tabernacle, that is, in the court, as Gersom observes; according to the above Targum, the butcher killed it, and not the priest: (See Gill on Leviticus 1:5) all this is typical of the imputation of sin to Christ, and of his death.