'Sodom and Gomorrah' in the Bible

Truly I say to you, it will be more tolerable for the land of Sodom and Gomorrah in the day of judgment than for that city.

and if He condemned the cities of Sodom and Gomorrah to destruction by reducing them to ashes, having made them an example to those who would live ungodly lives thereafter;

just as Sodom and Gomorrah and the cities around them, since they in the same way as these indulged in gross immorality and went after strange flesh, are exhibited as an example in undergoing the punishment of eternal fire.