1)
Above (3:9, 15) it says "va'Yiz'aku." Why does it say here va'Yitz'aku?
1.
Malbim: This is a greater cry than va'Yiz'aku, for three reasons. (a) He had 900 iron chariots. (b) He ruled b'Chazkah (reviled them). (c) He subjugated them for 20 years.
2.
Lev Yitzchak: (There is no difference.) Zayin and Tzadi are interchangeable. Targum Onkelos of va'Yitz'aku (Shemos 14:10) is "u'Z'iku".
2)
What is the meaning of "b'Chazkah"?
1.
Rashi citing Tanchuma (96:2): He reviled them - "Chazku Alai Divreichem" (Mal'achi 3:13).
