Leviticus 6:20

Overview - Leviticus 6
The trespass offering for sins done wittingly.
The law of the burnt offering;
14 and of the meat offering.
19 The offering at the consecration of a priest.
24 The law of the sin offering.
Treasury of Scripture Knowledge

Leviticus 6:20  (King James Version)
This is the offering of Aaron and of his sons, which they shall offer unto the LORD in the day when he is anointed; the tenth part of an ephah of fine flour for a meat offering perpetual, half of it in the morning, and half thereof at night.

the offering
This oblation, which the Jews call a {mincha} of initiation, seems to have been required of the high priest alone "on the day in which he was anointed," and from that time, every morning and evening, as long as he continued in office, and then in like manner of his successor; for, by "the sons of Aaron," may be understood his descendants and successors in the high priesthood, in their generations.
Exodus 29:2 ; Numbers 18:26-32 ; Hebrews 5:1 ; 7:27 Hebrews 8:3 Hebrews 8:4

in the day
The word {beyom} signifies not only in the day, but from that day forward; for it was a daily oblation, and for them and their successors, a statue for ever.

the tenth
5:1 Exodus 16:36

a meat offering
2:1-16 Exodus 29:35-42 ; Numbers 28:3 Numbers 28:10