1)
How did they aggrandize themselves over Hashem?
1.
Radak: They said that He does not hear their evil words.
2.
Malbim: They tell tales that disdain Elokus.
2)
What is the meaning of "v'Hatartem"?
1.
Targum Yonasan: You increased. Rashi - also "va'Asar Anan ha'Ketores" (8:11; Radak - and "v'Nataros Neshikos Sonei" - Mishlei 27:6) is an expression of increase.
3)
Why does it say "Ani Shamati"?
1.
Malbim: I heard your words that disparage Elokus - they impinge on My honor!