John Gill Commentary Leviticus 4:16

"And the anointed priest shall bring of the blood of the bullock to the tent of meeting:" — Leviticus 4:16 (ASV)

Ver. 16-21. And the priest that is anointed shall bring of the
bullock's blood
That is, the chief priest, as the Targums of Onkelos and Jonathan explain it:

to the tabernacle of the congregation ;
as he brought the blood of his own bullock, (Leviticus 4:5) from hence to the (Leviticus 4:16–22) an account is given of the same rites to be observed in the sin offering, for the congregation, as for the anointed priest; (See Gill on Leviticus 4:6) (See Gill on Leviticus 4:7) (See Gill on Leviticus 4:12).