What lessons did the Egyptians learn from the early plagues in the story of Moses?

Here are the lessons the Egyptians learned from the early plagues:

The Egyptians learned that the God of Moses and Aaron possessed supreme power over their land, their natural resources, and their deities. The plagues demonstrated that their own gods (like Hapi, the god of the Nile, and Heqet, the frog goddess) were powerless against the God of Israel. Furthermore, the inability of Pharaoh's magicians to reverse the plagues, and their eventual admission that "This is the finger of God," showed the limitations of their magic compared to divine power.