1)
Why does it say "v'Atah"?
1.
Malbim: Now there are two other reasons ? due to Your servant's Tefilah, and for the sake of the Mikdash.
2)
What is "Lema'an Hashem"?
1.
Rashi: For the sake of the Kadosh name called on the Beis ha'Mikdash ? "Mikdash Hashem Konenu Yadecha."
2.
Ibn Ezra (14): For the sake of this name that we mention.
3.
Ibn Ezra (14): A Drashah explains, for the sake of Avraham, who was the first to call Hashem by the name Aleph Dalet.
4.
Malbim: He put His name on this house, so there is Chilul Hashem [when it is in ruins].
