John Calvin Commentary Leviticus 9:6

"And Moses said, This is the thing which Jehovah commanded that ye should do: and the glory of Jehovah shall appear unto you." — Leviticus 9:6 (ASV)

And Moses said, This is the thing which the Lord commanded. He seems, indeed, to address the whole people, to whom the promise also belonged; but in the word “do ye,”⁴¹³ He specifically speaks to the sons of Aaron; and he promises what, at the end of the chapter, he will state was fulfilled: that the glory of God should be manifested in approval of the priesthood, so that they may set about their duties more cheerfully. For this was no common aid to their faith and assurance, that their office should be thus, as it were, sealed by God.

⁴¹³ “That ye should do.” — A. V.