'Sodom and Gomorrah' in the Bible

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

And as many as shall not receive you, neither hearken to you, when ye go from thence, shake off the dust from beneath your feet, for a testimony against them. Verily I say unto you, It shall be more tolerable for Sodom and Gomorrah in the day of judgment, than for that city.

and reducing the cities of Sodom and Gomorrah to ashes, condemned them to final destruction, making them an example for all who in future should live ungodly;