Kierkegaard's Fear and Trembling analyses the biblical figure of Abraham, who was supposed to sacrifice his son Isaac, an act he calls "a knight of faith's conduct". As other authors add, there are different aspects of behaviour - order, decision, jump, sacrifice and silence.
We have borrowed the concept and applied it to two novels: Troje paměti Víta Choráze (The Three Memoirs of Vít Choráz) by Julius Zeyer and Hécate by Pierre Jean Jouve. Both transform this concept but show this knight of faith according to the abovementioned attributes as well.