Meaning of the word "be as pure as the driven snow" in English

What does "be as pure as the driven snow" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

be as pure as the driven snow

US /bi æz pjʊr æz ðə ˈdrɪvən snoʊ/
UK /bi æz pjʊər æz ðə ˈdrɪvən snoʊ/
"be as pure as the driven snow" picture

Idiom

to be morally pure and innocent

Example:
She claims to be as pure as the driven snow, but I've heard stories.
Despite his rough exterior, his intentions were always as pure as the driven snow.