Jeremiah chapters 46-48 contain a series of prophecies against foreign nations. These chapters specifically focus on Egypt and the neighboring nations of Moab and Ammon. The prophecies describe the coming judgments of God upon these nations as a result of their wickedness and disobedience.
Chapter 46 predicts Egypt's defeat by Babylon, highlighting the extent of the destruction and devastation that will occur.
Chapter 47 predicts similar judgment upon Philistia, with the city of Gaza being destroyed completely.
The prophecies against Moab in chapter 48 describe their prideful arrogance, which leads to their downfall. They will be destroyed and become a source of terror for their neighbors. The prophecy against Ammon in the same chapter warns of their idolatrous worship as they turn away from God, leading to their destruction and desolation.