New Defender's Study Bible Notes
8:7 cast upon the earth. The first trumpet judgment may well entail an angel-manipulated providential miracle, since nothing like a rain of “hail and fire mingled with blood” has yet been observed on earth for scientific analysis. The hailstones could actually be a hail of volcanic stones resulting from fiery eruptions associated with the preceding earthquake. How the descending fire would become mixed with blood, or with any substance that has the appearance of blood, is not known, though one could speculate.
8:7 burnt up. Forest fires and grass fires have been a scourge all through history, but this fire will dwarf them all. After a long period of worldwide drought and heat, these fires suddenly falling from heaven will seem to set the world ablaze (note also Joel 1:18-20). A third of the earth’s forest and all the grass will be left scorched and barren, even further augmenting the global famines.