TT #44 · Parshas Shemini · Aliyah 3 · Passuk 6
Chabad.org — Vayikra Chapter 10 with Rashi
Taanis 15b.
E-Daf.com — Taanis 15b (Tsurras Hadaf)
English: “Moshe said to Aharon, to Elazar, and to Itamar.” Rabbi teaches that when beginning an address of honor, one begins with the greatest person, as Moshe first addresses Aharon.
Textual order — the Chazal derives the teaching from the wording or structure of the verse.
Moshe begins the instruction with Aharon, teaching a principle of honor and precedence in addressing a greater person.