Radak: To whom can you compare Me, and I will resemble him?! Bnei Bavel trusted in their idols, and subjugated Yisrael and said 'their G-d cannot save them from our hands, for our gods handed them over into our hands.' How can you compare your gods to Me?! They are gold and silver, and the work of man's hands!

Malbim: Dimyon is partial resemblance. Hashva'ah is in all ways.

Rashi: This is like "va'Esmashel ke'Afar va'Efer" (Iyov 30:19); it is an expression of comparison.

Malbim: Mashal is a small resemblance than Dimyon; it applies even when they do not share any description, just there is an external relation between them. You cannot even make such a comparison!