1)
Why did he ask what he wants?
1.
Rashi: I will do your request.
2.
Malbim: Do you want to build the graves, or the entire city? Should I command to build, or do you want to build?
2)
What is the meaning of "va'Espalel"?
1.
Rashi: I said in front of the king in my Tefilah 'may it be Hashem's will that you (the king) will fulfill my request.'
2.
Ibn Ezra: I already prayed.
3.
Malbim: When I answered the king, my heart was to Hashem. "If it is good for ha'Melech" (5) refers to the supreme King. Only his speech was to the king.
