Isaiah 30:33; Isaiah 34:9

Isaiah 30:33

33 For Topheth has long been ready, Indeed, it has been prepared for the king. He has made it deep and large, A pyre of fire with plenty of wood; The breath of the LORD , like a torrent of brimstone, sets it afire.

Isaiah 34:9

9 Its streams will be turned into pitch, And its loose earth into brimstone, And its land will become burning pitch.