Genesis 14:8
And there went out the king of Sodom, and the king of Gomorrah, and the king of Admah, and the king of Zeboiim, and the king of Bela (the same is Zoar;) and they joined battle with them in the vale of Siddim;
Cross-reference
Genesis 14:2 first names these same five kings entering the war; here in 14:8 they rejoin battle, continuing the same narrative arc.
In Genesis 14:3, the vale of Siddim is identified as the salt sea, providing geographical context for the battle.
In Genesis 14:10, the vale of Siddim's slimepits are mentioned, explaining part of the battle's outcome here.
In Genesis 19:22, the city's name Zoar is explained, linking to Bela mentioned here.
In Genesis 19:20, Zoar is referenced as the place Lot fled to, connecting it to the city involved in this battle.
In Hosea 11:8, Admah and Zeboim are referenced as examples of destruction, linking to the cities in this battle.
In Deuteronomy 34:3, Zoar is mentioned in the Promised Land overview, connecting it to the city in this battle.