Sulphur

A yellow, crystalline substance, also known as brimstone, which ignites and burns readily. It is invariably associated with divine punishment in Scripture.

Burning sulphur causes desolation

Deuteronomy 29:23 See also Job 18:12–17

All its soil will be a burning waste of sulfur and salt, unsown and unproductive, with no plant growing on it, just like the destruction of Sodom and Gomorrah, Admah and Zeboiim, which the LORD overthrew in His fierce anger.

Divine punishment by means of burning sulphur

Psalm 11:5–6 See also Isaiah 30:31–33, Isaiah 34:8–10; Ezekiel 38:21–23; Revelation 9:13–19, Revelation 14:9–11

The LORD tests the righteous and the wicked; His soul hates the lover of violence. On the wicked He will rain down fiery coals and sulfur; a scorching wind will be their portion.

Sodom and Gomorrah destroyed by burning sulphur

Genesis 19:24–25 See also Luke 17:28–29

Then the LORD rained down sulfur and fire on Sodom and Gomorrah — from the LORD out of the heavens. Thus He destroyed these cities and the entire plain, including all the inhabitants of the cities and everything that grew on the ground.

The lake of burning sulphur

Revelation 21:8 See also Revelation 19:19–21, Revelation 20:7–10

But to the cowardly and unbelieving and abominable and murderers and sexually immoral and sorcerers and idolaters and all liars, their place will be in the lake that burns with fire and sulfur. This is the second death.”