Azekah in the Bible

And the Lord caused them to panic and be confused before Israel, and He struck them dead in a great slaughter at Gibeon, and chased them along the way that goes up to Beth-horon and struck them as far as Azekah and Makkedah.

As they fled before Israel, while they were at the descent of Beth-horon, the Lord threw down large stones [of hail] from heaven on them as far as Azekah, and they died. More [Amorites] died because of the hailstones than those whom the sons of Israel killed with the sword.

Jarmuth and Adullam, Socoh and Azekah,

Now the Philistines gathered together their armies to battle, and were gathered together at Shochoh, which belongeth to Judah, and pitched between Shochoh and Azekah, in Ephesdammim.

and Adoraim, and Lachish, and Azekah,

Zanoah, Adullam, and in their villages, at Lachish, and the fields thereof, at Azekah, and in the villages thereof. And they dwelt from Beersheba unto the valley of Hinnom.

He did this while the army of the king of Babylon was attacking Jerusalem and the cities of Lachish and Azekah. He was attacking these cities because they were the only fortified cities of Judah which were still holding out.