1)
Before, it said "Od Zeh Medaber." Why does it say here "Ad Zeh Medaber"?
1.
Ibn Ezra: This was the last one to herald.
2.
Devar Eliyahu: When Iyov heard that his children died, he fainted more. The Satan caused this one to wait for the previous one to finish 1 , so Iyov would have a small respite from his first afflictions, to aggrandize his final pain.
1
Malbim: The first three all heralded loss of property. They are the same matter, so one began before the previous finished. This one heralded loss of children, a new matter, so he waited for the third to finish his words.


