1)
What is the significance of the four kinds of suffering "Nachah, Saraf, Akrav ve'Tzima'on" that existed in the great and fearful desert?
1.
Ba'al ha'Turim: They are the same Gematriya as 'be'Kasdim, bi'Peras, be'Makedon u've'Se'ir" (the four nations that subjugated us in the Midbar of exile).
2)
Why is the fact that Hashem produced water from a flint-rock noteworthy?
1.
Seforno: Because what the Pasuk means is that Hashem actually transformed the flint-rock into water. 1
1
Seforno: As the Pasuk specifically states in Tehilim, 114:8.
