Stolen water is sweet (Proverbs 9:17)

bible verse

“Stolen water is sweet; food eaten in secret is delicious!” (Proverbs 9:17)

meaning

Temptations are sweet. Stolen waters are temptations.

origin and application

More often than not, men are prone to what is forbidden. Look at Adam and Eve. They desire fruits from the only tree which is forbidden by God.
This idiom has been cited in literary works since its appearance in the English Bible. Often, it carries the connotations of prohibited lusts, which are sought after for their seeming pleasantness.

example

Jane: Tom was found having an extra-marital affair with his secretary.
Tina: Well, stolen waters are sweet.