1)
Why does it say "Ki mi'Ketanam?"?
1.
Radak: Just like all sinned, so all will be punished.
2.
Malbim: (a) They have no merit from their Gedolim for from small to big, they take money unjustly. (b) Since even the Nevi'im and Kohanim are evil, there is no hope that they will take Musar from Nevi'im or Torah from Kohanim.
2)
What is "Botze'a Batza"?
1.
Rashi: It is extortion of money.
3)
What Navi is this?
1.
Radak: It is a false Navi.
2.
Radak citing Targum Yonasan: It is a Chacham who warns the nation.
4)
What Kohen is this?
1.
Radak #1: It is a priest of the Ba'al.
2.
Radak #2: It is Kohanim of Shevet Levi. Also they were evil!