cast pearls before swine
Speech parts
1. cast pearls before swine - Verb
2. cast pearls before swine - Phrase
Meaning
cast pearls before swine (third-person singular simple present casts pearls before swine, present participle casting pearls before swine, simple past and past participle cast pearls before swine)
(idiomatic) To give things of value to those who will not understand or appreciate them.