2 Peter 2:6

And sent destruction on Sodom and Gomorrah, burning them up with fire as an example to those whose way of life might in the future be unpleasing to him;

Jude 1:7

Even as Sodom and Gomorrah, and the towns near them, having like these, given themselves up to unclean desires and gone after strange flesh, have been made an example, undergoing the punishment of eternal fire.

Numbers 26:10

And they went down into the open mouth of the earth, together with Korah, when death overtook him and all his band; at the time when two hundred and fifty men were burned in the fire, and they became a sign.

Deuteronomy 29:23

And that all the land is a salt and smoking waste, not planted or giving fruit or clothed with grass, but wasted like Sodom and Gomorrah, Admah and Zeboiim, on which the Lord sent destruction in the heat of his wrath:

Genesis 19:24-25

Then the Lord sent fire and flaming smoke raining down from heaven on Sodom and Gomorrah.

Luke 17:28-30

In the same way, in the days of Lot; they were feasting and trading, they were planting and building;

Genesis 19:28

And looking in the direction of Sodom and Gomorrah and the lowland, he saw the smoke of the land going up like the smoke of an oven.

Isaiah 13:19

And Babylon, the glory of kingdoms, the beautiful town which is the pride of the Chaldaeans, will be like God's destruction of Sodom and Gomorrah.

Jeremiah 50:40

As when Sodom and Gomorrah and their neighbouring towns were overturned by God, says the Lord, so no man will be living in it, and no son of man will have a resting-place there.

Ezekiel 16:49-56

Truly, this was the sin of your sister Sodom: pride, a full measure of food, and the comforts of wealth in peace, were seen in her and her daughters, and she gave no help to the poor or to those in need.

Hosea 11:8

How may I give you up, O Ephraim? how may I be your saviour, O Israel? how may I make you like Admah? how may I do to you as I did to Zeboim? My heart is turned in me, it is soft with pity.

Amos 4:11

And I have sent destruction among you, as when God sent destruction on Sodom and Gomorrah, and you were like a burning stick pulled out of the fire: and still you have not come back to me, says the Lord.

Zephaniah 2:9

For this cause, by my life, says the Lord of armies, the God of Israel, truly Moab will become like Sodom and the children of Ammon like Gomorrah, given up to waste plants and salt pools and unpeopled for ever: the rest of my people will take their property, the overflow of my nation will take their heritage.

1 Corinthians 10:11

Now these things were done as an example; and were put down in writing for our teaching, on whom the last days have come.

Jude 1:15

To be the judge of all, and to give a decision against all those whose lives are unpleasing to him, because of the evil acts which they have done, and because of all the hard things which sinners without fear of God have said 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 sent fire and flaming smoke raining down from heaven on Sodom and Gomorrah.
Deuteronomy 29:23
And that all the land is a salt and smoking waste, not planted or giving fruit or clothed with grass, but wasted like Sodom and Gomorrah, Admah and Zeboiim, on which the Lord sent destruction in the heat of his wrath:
Isaiah 13:19
And Babylon, the glory of kingdoms, the beautiful town which is the pride of the Chaldaeans, will be like God's destruction of Sodom and Gomorrah.
Jeremiah 50:40
As when Sodom and Gomorrah and their neighbouring towns were overturned by God, says the Lord, so no man will be living in it, and no son of man will have a resting-place there.
Ezekiel 16:49
Truly, this was the sin of your sister Sodom: pride, a full measure of food, and the comforts of wealth in peace, were seen in her and her daughters, and she gave no help to the poor or to those in need.
Hosea 11:8
How may I give you up, O Ephraim? how may I be your saviour, O Israel? how may I make you like Admah? how may I do to you as I did to Zeboim? My heart is turned in me, it is soft with pity.
Amos 4:11
And I have sent destruction among you, as when God sent destruction on Sodom and Gomorrah, and you were like a burning stick pulled out of the fire: and still you have not come back to me, says the Lord.
Zephaniah 2:9
For this cause, by my life, says the Lord of armies, the God of Israel, truly Moab will become like Sodom and the children of Ammon like Gomorrah, given up to waste plants and salt pools and unpeopled for ever: the rest of my people will take their property, the overflow of my nation will take their heritage.
Luke 17:28
In the same way, in the days of Lot; they were feasting and trading, they were planting and building;
Jude 1:7
Even as Sodom and Gomorrah, and the towns near them, having like these, given themselves up to unclean desires and gone after strange flesh, have been made an example, undergoing the punishment of eternal fire.

Making

Numbers 26:10
And they went down into the open mouth of the earth, together with Korah, when death overtook him and all his band; at the time when two hundred and fifty men were burned in the fire, and they became a sign.
Deuteronomy 29:23
And that all the land is a salt and smoking waste, not planted or giving fruit or clothed with grass, but wasted like Sodom and Gomorrah, Admah and Zeboiim, on which the Lord sent destruction in the heat of his wrath:
1 Corinthians 10:11
Now these things were done as an example; and were put down in writing for our teaching, on whom the last days have come.

General references

Joshua 22:20
Did not Achan, the son of Zerah, do wrong about the cursed thing, causing wrath to come on all the people of Israel? And not on him only came the punishment of death.
Jeremiah 50:40
As when Sodom and Gomorrah and their neighbouring towns were overturned by God, says the Lord, so no man will be living in it, and no son of man will have a resting-place there.
Luke 17:29
But on the day when Lot went out of Sodom, fire came down from heaven and destruction came on them all.
Luke 19:40
And he said in answer, I say to you, if these men keep quiet, the very stones will be crying out.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain