Amos 1:6-8 NLT

6 This is what the LORD says: "The people of Gaza have sinned again and again, and I will not forget it. I will not let them go unpunished any longer! They sent my people into exile, selling them as slaves in Edom.
7 So I will send down fire on the walls of Gaza, and all its fortresses will be destroyed.
8 I will slaughter the people of Ashdod and destroy the king of Ashkelon. Then I will turn to attack Ekron, and the few Philistines still left will be killed. I, the Sovereign LORD, have spoken!"