This article tries to explain explanations and truth-telling. Has truth-telling had a fixed meaning in history, or has it evolved and become meaningful with a particular type of action in history? This article has tried to deal with truth-telling as a meaningful action in history with the method of cultural history. The method of cultural history itself is a kind of history whose subject is man as a constructor of meanings. Meanings that have become common among people and in a way inter-subjective. People live with this formed semantic system and organize all their actions and deeds with those meanings. This method works in a library method in data collection and in data analysis, it tries to discover the meaning of a concept in the context of its time by analyzing historical data. Truth-telling is an action in the context of history that has found meaning and ethnicity in accordance with its time. This genealogy begins in ancient Greece with the concept of Parrhesia. The concept of explanation in the eyes of the prophets and the level in the literature of mystics and truth-telling in Shiite hadithes is a continuation of the history of truth-telling. Throughout this history of truth-telling in the discourse of the Islamic Revolution, truth-telling turns from an individual virtue into a social task, but it does not remain in the task and moves towards jihad. Jihad is the explanation of a social task to fight in the war of narrations in order to overcome the truth over the conflicting narrations.