Seeing as the Olah had already been placed on the Mizbe'ach, what is the meaning of "Al ha'Olah"?
Why does it say "Milu'im Hem l'Re'ach Nicho'ach"?
Moshav Zekenim: Hashem was happy and made a Yom Tov because He acquired the beloved that He chose. Hashem did not have a day like this from the day of creation. We learn from a Gezeirah Shavah "va'Yhi ba'Yom [ha'Shemini]- va'Yhi [Erev va'Yhi Boker] Yom [Echad]" (Megilah 10b). A mortal king who acquires a friend makes a Yom Tov, and all the more so 1 the King of kings who established a Kohen and chose him to serve Him.
Why is this all the more so? A mortal king needs friends and advisors, but Hashem does not need anything! Perhaps it is because a mortal king cannot know his friend's sincerity, or if he will always be loyal to him, but Hashem knows everything, (PF)