Brimstone an inflammable mineral substance found in quantities on the shores of the Dead Sea. The cities of the plain were destroyed by a rain of fire and brimstone (Genesis 19:24, Genesis 1:19). In Isaiah 34:9 allusion is made to the destruction of these cities. This word figuratively denotes destruction or punishment (Job 18:15; Isaiah 30:33; Isaiah 1:34; Psalms 11:6; Ezekiel 38:22). It is used to express the idea of excruciating torment in Revelation 14:10; Revelation 1:19; Revelation 1:20.