Commentaire sur L’Exode 40:29

ויעל עליו וגו׳ AND OFFERED UPON IT etc. Not only during the first seven days of the consecration of Aaron and his sons during which Moses set the dwelling up and then dismantled it, but also on the eighth day of the consecration which was the day of the final erection of the dwelling for its ordinary purposes did Moses officiate and offer the congregational sacrifices except those which had been commanded exclusively for that very day, as it is said, (Leviticus 9:7) “[And Moses said to Aaron], approach unto the altar and offer etc.

ויעל עליו, Aaron and his sons.

Moshe performed the service . . . [Accordingly,] when it is written here, “He burned the incense of spices upon it” (v. 27), it refers to Moshe, who burnt the incense during the seven days of the Installations before Aharon was anointed. And even on the eighth day, when Aharon began to burn incense, Moshe still burnt the incense [and brought the offerings] except for those which Aharon was commanded specifically for that day. Aharon and his sons brought [only] the offerings that they were commanded specifically for that day.