This is the offering of Aaron and his sons,.... That is, of such of them as succeeded him in the high priesthood, as appears from Le 6:22 so Aben Ezra, of him, or of one of his sons in his room; though some think the common priests offered the following oblation at the time of their initiation into their office, though they were not anointed as the high priest was, nor obliged as he to continue the offering daily:which they shall offer unto the Lord in the day when he is anointed; when he, or any of his sons in his stead, were anointed, for as yet he himself was not; see Le 8:2 some, as Aben Ezra observes, think that b, "in", is instead of m, "from", and that the sense is, that Aaron, or his successor, and every of them, were to offer the following offering perpetually from the time of their being anointed, and put into the office of the high priest, and which certainly was the case, as appears by what follows:the tenth part of an ephah of fine flour for a meat offering perpetual; which was an omer, and as much as a man could eat in one day; and this the high priest offered every day, as long as he lived, or was in his office, and that at his own expense, as Josephus says , not altogether, but in the following manner:half of it in the morning, and half of it at night; so that this constantly returned as the morning and evening sacrifices did, and followed them.
Jarchi says of this, that it was the common meat offering at the consecration of a priest, but the high priest offered it every day; and it appears from the Misnic writers that this meat offering consisted of twelve cakes, the same number as those of the shewbread; the same phrase, a "perpetual statute", being used of one as the other; and six of these were offered in the morning, and six at evening; and this as the daily sacrifice had the same mystical meaning, and respected the continual efficacy of the sacrifice of Christ.
Antiqu. l. 3. c. 10. sect. 7. Misn. Menachot, c. 6. sect. 5. & Maimon.