1 Chronicles 1:12

And Pathrusim, and Casluhim, (of whom came the Philistines,) and Caphthorim.

Casluhim, (of whom came the Philistines,) and Capthtorim - better rendered, 'and Casluhim, of whom came the Philistim and Caphtorim:' they were brethren, the sons of Casluhim, and at first dwelt together whence their names are used interchangeably; and the Caphtorim are described as inhabiting Azzah, or Gaza, the seat of the Philistines.