1)
Who are his advisors?
1.
Rashi: They are his seven advisors, who see his face - "v'Shiv'as Ya'atohi' (14).
2)
Did Hashem do Chesed to the Sarim?
1.
Ibn Ezra: No. It is as if it says v'Lifnei ha'Sarim (Hashem gave to Ezra Chesed and grace in front of them).
3)
Why did he say "k'Yad Hashem Elokai Alai"?
1.
Rashi: Like Hashem helped me to gather from Yisrael those who remained in Bavel - the heads of the Avos and the Gedolim, to ascend with me from Bavel.
