1)
Why does it say that the land became full of idols?
1.
Radak: Refer to 2:7:1:1.
2)
Why does it say "Yishtachavu"?
1.
Rashi: This is like Mishtachavim (present 1 , they bow).
1
Rashi (Bereishis 29:3): Anything done constantly, the verse uses the future or past for it.
3)
Why does it mention both "Ma'ase Yadav" and "Asher Asu Etbe'osav"?
1.
Malbim: This is a bigger folly. They bowed even to what their own fingers made! (Ma'ase Yadav includes what others made due to their command - Malbim Bi'ur ha'Milos.)
