Isaiah 37:8
"So Rabshakeh returned, and found the king of Assyria warring against Libnah: for he had heard that he was departed from Lachish."
Cross References (ranked by relevance)
Then Joshua passed from Makkedah, and all Israel with him, unto Libnah, and fought against Libnah:
So the Edomites revolted from under the hand of Judah unto this day. The same time also did Libnah revolt from under his hand; because he had forsaken the LORD God of his fathers.
Yet Edom revolted from under the hand of Judah unto this day. Then Libnah revolted at the same time.
Thus they gave to the children of Aaron the priest Hebron with her suburbs, to be a city of refuge for the slayer; and Libnah with her suburbs,
Lachish, and Bozkath, and Eglon,
The king of Jarmuth, one; the king of Lachish, one;