'Sodom and Gomorrah' in the Bible

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

and having destroyed the cities of Sodom and Gomorrah, with a catastrophe he condemned them, having put them forth as an example to those about to be ungodly:

as Sodom and Gomorrah and the cities about them, in a manner like unto them committing fornication, and going after other flesh, present an example receiving the vengeance of eternal fire.