Amos 1:6-9

6Thus says the Lord, “For three transgressions of Gaza [in Philistia] and for four (multiplied delinquencies) I will not reverse its punishment or revoke My word concerning it, Because [as slave traders] they took captive the entire [Jewish] population [of defenseless Judean border villages, of which none was spared] And deported them to Edom [for the slave trade].

7So I will send a fire [of war, conquest, and destruction] on the wall of Gaza And it shall consume her citadels.

8And I will cut off and destroy the inhabitants from Ashdod, And the ruler who holds the scepter, from Ashkelon; And I will unleash My power and turn My hand [in judgment] against Ekron, And the rest of the Philistines [in Gath and the towns dependent on these four Philistine cities] shall die,” Says the Lord God.

9Thus says the Lord, “For three transgressions of Tyre and for four (multiplied delinquencies) I will not reverse its punishment or revoke My word concerning it, Because they [as middlemen] deported an entire [Jewish] population to Edom And did not [seriously] remember their covenant of brotherhood.