What did Aharon mean when he said "Ki ve'Ra Hu"?
Rashi: He meant that Yisrael always follows an evil path, trying out Hashem. 1
Ramban: He meant that they initially asked b Aharon to provide a leader to replace Moshe, which Aharon did. And it was only afterwards that they decided to prostrate themselves before it and worship it.
R. Bachye: The actual words refer to the star Ra'ah whose power they had harnessed, 2 though it is not clear how he explains the statement.
Seforno: He meant that Yisrael were already accustomed to performing evil, when in Egypt they worshipped the Egyptian gods.
Targum Yonasan: He meant that they are really children of Tzadikim, and it is the Yeitzer ha'Ra that leads them astray.
Da'as Zekenim: He meant that, had Aharon not done [what they asked], they would have appointed a king over themselves, and the end would have been bitter.
