Charles Ellicott Commentary Joshua 10:32

"and Jehovah delivered Lachish into the hand of Israel; and he took it on the second day, and smote it with the edge of the sword, and all the souls that were therein, according to all that he had done to Libnah." — Joshua 10:32 (ASV)

On the second day. —With this fact we may connect two other facts of later history. When Sennacherib, king of Assyria, came up against all the fenced cities of Judah and took them (2 Kings 18:13), although he laid siege to Lachish, and all his power with him (2 Chronicles 32:9), he had to abandon the siege (2 Kings 19:8). Again, when Nebuchadnezzar invaded the kingdom of Judah in the reign of Zedekiah, the last king, we read (Jeremiah 34:7) of his army fighting against Jerusalem and against all the cities of Judah that were left, against Lachish and against Azekah, for these defenced cities remained of the cities of Judah. All these mentions of Lachish point to its being a fortress of considerable strength. And the undesigned and indirect agreement of these three passages, which lie so far apart, is worthy of observation.