Charles Ellicott Commentary Leviticus 6:22

"And the anointed priest that shall be in his stead from among his sons shall offer it: by a statute for ever it shall be wholly burnt unto Jehovah." — Leviticus 6:22 (ASV)

And the priest of his sons. —That is, any one of his descendants who succeeds to the high priesthood is to do the same in all times to come, since it is a statute to last as long as the priesthood continues.

It shall be wholly burnt. —Unlike the ordinary meat offerings brought by the laity, which, with the exception of a handful, was the portion of the officiating priest , the high priest could not eat of this mincha because he presented it himself, since it would be unseemly both to offer it to God and at the same time eat it himself. Nor was an ordinary priest allowed to eat it, because he was subordinate in rank to the officiating high priest.