THE BURDEN OF PHILISTIA. The Philistines had suffered grievously at the hands of Judah in the reign of Uzziah (2 Chronicles 26:6), and had retaliated in the reign of Ahaz (2 Chronicles 28:18). It would seem that after this they were invaded by Tiglath-Pileser, who penetrated as far as Gaza, which lie took and made tributary, as he also did Ascalon.
Tiglath-Pileser died shortly before Ahaz, and the present "burden" seems to have been uttered in connection with his death. Isaiah warns Philistia (equivalent to "Palestina") that her rejoicing is premature; Tiglath-Pileser will have successors as powerful and as cruel as himself, and these successors will carry destruction and ravage over the whole land.