1)
What is "Netel ha'Chol"?
1.
Rashi: It is a burden of sand.
2)
Why does it say "Koved Even v'Netel ha'Chol"?
1.
Malbim: Even one rock is heavy by itself. Sand is heavy only if he puts much on his shoulders, for the load joins up.
3)
Why is "Ka'as Evvil" worse than both of them?
1.
Rashi: An Evvil angers Hashem, and causes him to bring anger to the world.
2.
Malbim: Every anger is heavy by itself, like a heavy rock. All the constant angers from him join, like sand. Shemos Rabah (13:13) applies our verse to "Lech El Pharaoh Ki Ani Hichbadti Es Libo" (Shemos 10:1). Pharaoh said "Mi Hashem
