1)
Why did he say "Gam Ani Lo Echshach Pi"?
1.
Rashi: Since you do not refrain from [denouncing] me, also I will not refrain from screaming about your Midos.
2.
Malbim: Since I will not lose via talking, and I will not gain via silence, it is good that "I speak amidst my bitter 1 Ru'ach."
1
Presumably, the text of Malbim should say b'Mar, like the verse. (PF)
