Part 13 deals with the topic of rebellion. The focus is upon the ten plagues of Egypt and upon the rebellion of Korah. Since Pharoah did not let the Israelite people go, then the Egyptians lost all of their firstborn in the last plague.
In Numbers Chapter 16, it talks about the rebellion of Korah. The result of that rebellion is that he was cursed forever as the earth swallowed him and his cronies up.