Why do they need to be Metaher the Mizbe'ach?
Radak: It became Tamei in the hands of Goyim of the land 1 .
Radak explained that these Korbanos will be in Bayis Shelishi. Above (14), he said that after four Amos of height, the Mizbe'ach widens. This was not in Bayis Sheni; the Mizbe'ach in Bayis Shelishi will be different. When was it in the hands of Goyim? (PF)
What is the meaning of "u'Mil'u Yadav"?
Radak citing Targum Yonasan: They will offer its [the Mizbe'ach's] Korbanos. So Onkelos translated "u'Mileisa Yad Aharon v'Yad Banav" (Shemos 29:9) and similar verses.
Radak: The hands of the Kohen who offers, his hands will be full of the sections of the Korban.
Malbim: The Olah is Metaher the Mizbe'ach and fills its hand. The Par on the first day did not, for it was burned outside the Machaneh [and not on the Mizbe'ach].
It is written Yado, and we pronounce it Yadav?
Radak: Many words are written lacking the Yud for the plural. This does not change the meaning.
