The lords of the Philistines gathered them together to offer a great sacrifice to Dagon their god, and to rejoice; for they said, Our god has delivered Samson our enemy into our hand.
As mentioned previously, the Philistines were very religious. They thanked Dagon, their chief god, for Samson’s capture (Judges 16:23). The Philistines were singing songs that the Israelites should have been singing for Yahweh’s deliverance of them, but they had not trusted and obeyed Him. Samson had given the enemies of Yahweh opportunity to blaspheme Him (cf. 2 Samuel 12:14). Perhaps the writer recorded so much of their praise here because it turned out to be totally without basis very soon.