What is the meaning of "Kasheves"?
Rashi: This is like Kosheves (hearkens). Just like from [the root] Ahav we say Ohev, from Kashev we say Koshev and Kosheves.
Ibn Ezra, Malbim: This is an adjective. Its grammatical form is like Iveres.
What is the significance of Hashem's eyes being open?
Malbim: You will immediately fulfill the request via Your Hashgachah.
Why did he say "ha'Yom Yomam va'Laylah"?
Ibn Ezra #1: Yomam va'Laylah refers to Mispalel. He prays today, and will pray day and night many times for Bnei Yisrael.
Ibn Ezra #2: Yomam va'Laylah explains ha'Yom ? a full day, daytime and night.
Malbim: What I pray today, I pray every day constantly ? "va'Es'abelah Yamim va'Ehi Tzam u'Mispalel" (4).
