What does Psalm 87:5 mean?
Please see our chapter commentary on Psalm 87, verse-level content coming soon!Psalm 87:4–7 looks ahead to a day (Revelation 15:4) when even non-Israelite nations will come to be part of God's kingdom (Revelation 20:4). Rahab—meaning Egypt (Isaiah 30:7)—and Babylon were the southern and northern powers of the ancient world. Likewise, the other nations and rivals of Israel will be adopted into the family of God (Galatians 3:26–29; Revelation 7:9). The world will see Zion—Jerusalem—as the source of every good thing.
Jerusalem is the city established by David (2 Samuel 5:7), which became the capital city of Israel. Other nations will come to respect the city. These nations include Babylon, Philistia, Tyre, and Cush. "Rahab," in this context, is the nation of Egypt (Isaiah 30:7). The world will come to Jerusalem to be adopted into the family of God as if they were natural-born children of the city.