1)
What are "Gilulim"?
1.
Malbim: They are forms of detested wild and domestic animals.
2)
What is the Chidush "Asher Amar Hashem Lahem Lo Sa'asu"?
1.
Malbim: They did so only because Hashem forbade, to anger Him. They know that they are [impotent] images.
