Per la storia di due espressioni di origine biblica

The paper describes the diachronic development of two Italian idioms originated in the Bible: gettare le perle ai porci (‘to cast pearls before swine’) and vedere la pagliuzza e non vedere la trave (‘a beam in your eye’, literally ‘to look at the splinter and not at the beam’). In particular, it focuses on the spread, among variants, of the most common forms today, those with the nouns perle and porci, and pagliuzza and trave.