1)
What will be the consequence of Hashem hearing his Tefilah?
1.
Radak citing Shocher Tov: You will not put my quarrel in a box. Rather, it should rise and bear fruits. It will be in front of You, and You will wage my battle.
2)
Is there a difference between "Tefilah" and "Shav'ah"?
1.
Malbim: Yes. Tefilah is pouring out the Nefesh in front of Hashem for the Klal, and Shav'ah is screaming for himself.
