THE THIRTEENTH THROUGH TWENTY-THIRD CHAPTERS CONTAIN PROPHECIES AS TO FOREIGN NATIONS.--THE THIRTEENTH, FOURTEENTH, AND TWENTY-SEVENTH CHAPTERS AS TO BABYLON AND ASSYRIA. (Isa. 13:1-22) burden--weighty or mournful prophecy [GROTIUS]. Otherwise, simply, the prophetical declaration, from a Hebrew root to put forth with the voice anything, as in Num 23:7 [MAURER]. of Babylon--concerning Babylon.