Biblical kingdom near the Dead Sea

EDOM

This ancient land, descended from Esau, was often in conflict with Israel and lay to the southeast of Judah. Its red rock terrain gave it another name: "the red land.

The clue points to Edom, an ancient kingdom mentioned in the Bible that bordered the Dead Sea to the southeast. It was known for its rocky terrain and conflicts with Israel, often referenced in Old Testament stories. The name directly fits the geographic and historical hint without any wordplay—just a straightforward biblical reference.