Joshua 10:10 Yahweh confused them before Israel, and he killed them with a great slaughter at Gibeon, and chased them by the way of the ascent of Beth Horon, and struck them to Azekah and to Makkedah.
Joshua 10:11 It happened, as they fled from before Israel, while they were at the descent of Beth Horon, that Yahweh cast down great stones from the sky on them to Azekah, and they died. There were more who died from the hailstones than who the children of Israel killed with the sword.
Joshua 15:35 Jarmuth, Adullam, Socoh, Azekah,
1 Samuel 17:1 Now the Philistines gathered together their armies to battle; and they were gathered together at Socoh, which belongs to Judah, and encamped between Socoh and Azekah, in Ephesdammim.
2 Chronicles 11:9 and Adoraim, and Lachish, and Azekah,
Nehemiah 11:30 Zanoah, Adullam, and their villages, Lachish and its fields, Azekah and its towns. So they encamped from Beersheba to the valley of Hinnom.
Jeremiah 34:7 when the king of Babylon's army was fighting against Jerusalem, and against all the cities of Judah that were left, against Lachish and against Azekah; for these alone remained of the cities of Judah as fortified cities.
a-ze'-ka `azekah: A town of some importance in the Shephelah of Judah mentioned (Joshua 15:35) next to Socoh. In Joshua 10:10 the defeated kings of the Arnorites are described as flying before Joshua "by the way of the ascent of Beth-horon. to Azekah, and unto Makkedah" and (Joshua 10:11) as the host fled "Yahweh cast down great stones from heaven upon them unto Azekah, and they died." In 1 Samuel 17:1 it is recorded that before David's combat with Goliath, the Philistines "gathered together at Socoh, which belongeth to Judah, and encamped between Socoh and Azekah, in Ephes-dammin." In 2 Chronicles 11:9 it is mentioned as one of the frontier cities which Rehoboam fortified and in Jeremiah 34:7 it is one of the two fortified cities remaining to Judah in the Shephelah which Nebuchadnezzar was besieging. "Azekah and the towns (margin, "daughters") thereof" is mentioned among the cities reoccupied by Jews returning after the Exile (Nehemiah 11:30). In all the three last references the place is mentioned along with Lachish.
International Standard Bible Encyclopedia