Concept
Impiety
Overview
Impiety is a perceived lack of proper respect for something considered sacred. Impiety is often closely associated with sacrilege, though it is not necessarily a physical action. Impiety cannot be associated with a cult, as it implies a larger belief system was disrespected. One of the Pagan objections to Christianity was that, unlike other mystery religions, early Christians refused to cast a pinch of incense before the images of the gods, an impious act in their eyes. Impiety in ancient civilizations was a civic concern, rather than solely religious (as religions were tied into the state). It was believed that impious actions such as disrespect towards sacred objects or priests could bring down the wrath of the gods.
Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).
Possible passages
Found by search and not yet checked by a person; they may only mention the idea in passing.
For after that, in the wisdom of God, the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe. For the Jews require a sign, and the Greeks seek after wisdom; but we preach Christ crucified, unto the Jews a stumbling-block, and unto the Greeks foolishness; but unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God. Because…
of Hippo Augustine, The City of God, Volume I
States what Impiety is; names Impiety.
ATHENIAN: After the prelude shall follow a discourse, which will be the interpreter of the law; this shall proclaim to all impious persons that they must depart from their ways and go over to the pious. And to those who disobey, let the law about impiety be as follows: If a man is guilty of any impiety in word or deed, any one who happens to be present shall give information to the magistrates, in aid of the law…
Plato, Laws
Names Impiety several times.
But I will amend the definition so far as to say that what all the gods hate is impious, and what they love pious or holy; and what some of them love and others hate is both or neither. Shall this be our definition of piety and impiety?
Plato, The dialogues of Plato in five volumes, Vol. 2
States what Impiety is; names Impiety several times.
Philosophers who discussed Impiety
Related ideas
Place in the tradition
Part of Anaxagoras.