What are "Nidbachin"?
Rashi: They are walls.
Ibn Ezra: These are [rows of rocks,] like "mi'Tachas ha'Tiros" (Yechezkel 46:23) - the Targum is mil'Ra l'Nidbachaya.
What is "Even Glal"?
Rashi: It is marble.
Ibn Ezra (5:8): Rocks that must rolled due to their weight (they are too heavy to carry).
What is "Nidbach"?
Rashi: It is a wall of new wood inside 1 , like in Shlomo's Mikdash. Ibn Ezra - also in Shlomo's Bayis there were three rows of rocks and one of cedar wood.
Malbim: Chazal said, this was so if they rebel, the kingdom will be able to burn the Bayis. Also this shows that they are not rebelling!
What is "Nifkesa"?
Rashi: The expenditures for the Bayis and other matters.
