What does the Bible say about the fourth plague in Egypt?

In Exodus 8:20-32, the fourth plague that God sent upon Egypt was a grievous swarm of flies. This plague served as a divine judgment against Pharaoh and the Egyptians for their stubborn refusal to let the Israelites go. God specifically warned Pharaoh ahead of time, saying that if he did not let His people go, He would send flies upon Egypt. Notably, the land of Goshen, where the Israelites lived, was spared from this plague, demonstrating God's protection over His chosen people and His control over creation.