1)
What is the meaning of "Yachmos ka'Gefen Bisro"?
1.
Ibn Ezra: This is spreading, like "va'Yachmos ka'Gan Suko", "Nechmesu Akevayich."
2.
Malbim: He is like a vine that casts down its unripe grapes.
2)
Why did he add "va'Yashlech k'Zayis Nitzaso"?
1.
Malbim: It casts down the flower before it reaches the level of unripe fruits. So Iyov's old and young children perished.
