A mineral substance, highly inflammable, and burning with a suffocating smell. Sodom and the other cities of the plain were destroyed "by brimstone and fire," Genesis 19:24; and this awful catastrophe is often used in Scripture, as an emblem of temporal and eternal judgments of God upon the wicked, Job 18:15; Psalm 11:6; Isaiah 30:33; 34:9; Revelation 21:8 .