2 Peter 2:6

And turning the cities of Sodom and Gomorrah into ashes condemned them by a catastrophe, making them an example unto those that later should live ungodly;

Jude 1:7

Even as Sodom and Gomorrah, and the cities about them in like manner, giving themselves over to fornication, and going after unnatural lust, are set forth for an example, suffering the vengeance of eternal fire.

Numbers 26:10

And the earth opened its mouth, and swallowed them up together with Korah, when that company died, when the fire devoured two hundred and fifty men: and they became a sign.

Deuteronomy 29:23

And that the whole land thereof is brimstone, and salt, and burning, that it is not sown, nor does it bear, nor any grass grows therein, like the overthrow of Sodom, and Gomorrah, Admah, and Zeboim, which the LORD overthrew in his anger, and in his wrath:

Genesis 19:24-25

Then the LORD rained upon Sodom and upon Gomorrah brimstone and fire from the LORD out of heaven;

Luke 17:28-30

Likewise also as it was in the days of Lot; they did eat, they drank, they bought, they sold, they planted, they built;

Genesis 19:28

And he looked toward Sodom and Gomorrah, and toward all the land of the plain, and beheld, and, lo, the smoke of the country went up as the smoke of a furnace.

Isaiah 13:19

And Babylon, the glory of kingdoms, the beauty of the Chaldeans' pride, shall be as when God overthrew Sodom and Gomorrah.

Jeremiah 50:40

As God overthrew Sodom and Gomorrah and their neighboring cities, says the LORD; so shall no man abide there, neither shall any son of man dwell in it.

Ezekiel 16:49-56

Behold, this was the iniquity of your sister Sodom, pride, fullness of food, and abundance of idleness was in her and in her daughters, neither did she strengthen the hand of the poor and needy.

Hosea 11:8

How shall I give you up, Ephraim? how shall I deliver you, Israel? how shall I make you as Admah? how shall I set you as Zeboiim? my heart is turned within me, my compassion is stirred.

Amos 4:11

I have overthrown some of you, as God overthrew Sodom and Gomorrah, and you were as a firebrand plucked out of the burning: yet have you not returned unto me, says the LORD.

Zephaniah 2:9

Therefore as I live, says the LORD of hosts, the God of Israel, Surely Moab shall be as Sodom, and the children of Ammon as Gomorrah, even the breeding of weeds, and saltpits, and a perpetual desolation: the residue of my people shall plunder them, and the remnant of my people shall possess them.

1 Corinthians 10:11

Now all these things happened unto them for examples: and they are written for our admonition, upon whom the ends of the ages are come.

Jude 1:15

To execute judgment upon all, and to convict all that are ungodly among them of all their ungodly deeds which they have ungodly committed, and of all their hard speeches which ungodly sinners have spoken against him.

Treasury of Scripture Knowledge

Summary

And turning the cities of Sodom and Gomorrha into ashes condemned them with an overthrow, making them an ensample unto those that after should live ungodly;

Bible References

Turning

Genesis 19:24
Then the LORD rained upon Sodom and upon Gomorrah brimstone and fire from the LORD out of heaven;
Deuteronomy 29:23
And that the whole land thereof is brimstone, and salt, and burning, that it is not sown, nor does it bear, nor any grass grows therein, like the overthrow of Sodom, and Gomorrah, Admah, and Zeboim, which the LORD overthrew in his anger, and in his wrath:
Isaiah 13:19
And Babylon, the glory of kingdoms, the beauty of the Chaldeans' pride, shall be as when God overthrew Sodom and Gomorrah.
Jeremiah 50:40
As God overthrew Sodom and Gomorrah and their neighboring cities, says the LORD; so shall no man abide there, neither shall any son of man dwell in it.
Ezekiel 16:49
Behold, this was the iniquity of your sister Sodom, pride, fullness of food, and abundance of idleness was in her and in her daughters, neither did she strengthen the hand of the poor and needy.
Hosea 11:8
How shall I give you up, Ephraim? how shall I deliver you, Israel? how shall I make you as Admah? how shall I set you as Zeboiim? my heart is turned within me, my compassion is stirred.
Amos 4:11
I have overthrown some of you, as God overthrew Sodom and Gomorrah, and you were as a firebrand plucked out of the burning: yet have you not returned unto me, says the LORD.
Zephaniah 2:9
Therefore as I live, says the LORD of hosts, the God of Israel, Surely Moab shall be as Sodom, and the children of Ammon as Gomorrah, even the breeding of weeds, and saltpits, and a perpetual desolation: the residue of my people shall plunder them, and the remnant of my people shall possess them.
Luke 17:28
Likewise also as it was in the days of Lot; they did eat, they drank, they bought, they sold, they planted, they built;
Jude 1:7
Even as Sodom and Gomorrah, and the cities about them in like manner, giving themselves over to fornication, and going after unnatural lust, are set forth for an example, suffering the vengeance of eternal fire.

Making

Numbers 26:10
And the earth opened its mouth, and swallowed them up together with Korah, when that company died, when the fire devoured two hundred and fifty men: and they became a sign.
Deuteronomy 29:23
And that the whole land thereof is brimstone, and salt, and burning, that it is not sown, nor does it bear, nor any grass grows therein, like the overthrow of Sodom, and Gomorrah, Admah, and Zeboim, which the LORD overthrew in his anger, and in his wrath:
1 Corinthians 10:11
Now all these things happened unto them for examples: and they are written for our admonition, upon whom the ends of the ages are come.

General references

Joshua 22:20
Did not Achan the son of Zerah commit a trespass in the accursed thing, and wrath fell on all the congregation of Israel? and that man perished not alone in his iniquity.
Jeremiah 50:40
As God overthrew Sodom and Gomorrah and their neighboring cities, says the LORD; so shall no man abide there, neither shall any son of man dwell in it.
Luke 17:29
But the same day that Lot went out of Sodom it rained fire and brimstone from heaven, and destroyed them all.
Luke 19:40
And he answered and said unto them, I tell you that, if these should hold their peace, the stones would immediately cry out.