Adam Clarke, on 2Pet 2:6

“And reducing the cities of the Sodomites, and of the Gomorrhites, into ashes, condemned them to be overthrown, making them an example to those that should after act wickedly.”

“The cities of Sodom and Gomorrha - See the notes on Genesis 19 (note), for an account of the sin and punishment of these cities. Making them an ensample - These three words, ὑποδειγμα, παραδειγμα, and δειγμα, are used to express the same idea; though the former may signify an example to be shunned, the second an example to be followed, and the third a simple exhibition. But these differences are not always observed.”

Imported from an open dataset — not yet checked against the printed edition.