Thus saith the Lord God,.... Once more, and concerning another enemy of the people of Israel, and who had been of old an implacable one:
because the Philistines have dealt by revenge: for what they suffered in the times of Saul, when Goliath was slain by David, and their army was discomfited; and for the overthrow of them by David, when he came to throne; and for his burning their images, and subduing them,
1 Samuel 17:51, this revenge they took in the time of Ahaz, 2 Chronicles 28:18, and very probably also showed their spite at the time of Jerusalem's destruction:
and have taken vengeance with a despiteful heart, to destroy it for the old hatred; which they bore to the people of Israel, from their first settlement in Canaan; from the times of the judges, particularly Samson; and from the times of Saul and David: it was an old grudge they bore, they had spite and malice in their hearts, and wanted an opportunity to vent it; having determined to take vengeance when they could, and utterly destroy them from being a people; very likely, through despite, they assisted the Chaldean army: or, this they did "with a perpetual hatred" z; they did everything they could, in a spiteful and malicious way, to perpetuate the hatred between them and Israel.
z איבת עולם "inimictias perpetuas", Pagninus; "iuimietia perpetua", Junius & Tremellius, Piscator