Fear and Trembling (original Danish title: Frygt og Bæven) is a philosophical work by Søren Kierkegaard, published in 1843 under the pseudonym Johannes de silentio (Latin for John of the Silence). The title is a reference to a line from Philippians 2:12, "...continue to work out your salvation with fear and trembling." — itself a probable reference to Psalms 55:5, "Fear and trembling came upon me..." Kierkegaard wanted to understand the anxiety that must have been present in Abraham during the Binding of Isaac. Abraham had a choice to complete the task or to refuse to comply with God's orders. He resigned himself to the three-and-a-half-day journey and to the loss of his son. "He said nothing to Sarah, nothing to Eliezer. Who, after all, could understand him, for did not the nature of temptation extract from him a pledge of silence? He split the firewood, he bound Isaac, he lit the fire, he drew the knife." Because he kept everything to himself and chose not to reveal his feelings he "isolated himself as higher than the universal." Kierkegaard envisions two types of people in Fear and Trembling and Repetition. One lives in hope, Abraham, the other lives in memory, The Young Man and Constantin Constantius. He discussed them beforehand in Lectures delivered before the Symparanekromenoi and The Unhappiest Man. One hopes for happiness from something "out there" while the other finds happiness from something in themself. This he brought out in his upbuilding discourse, published on the same date. Kierkegaard says, "Infinite resignation is the last stage before faith, so anyone who has not made this movement does not have faith, for only in infinite resignation does an individual become conscious of his eternal validity, and only then can one speak of grasping existence by virtue of faith." He spoke about this kind of consciousness in an earlier book. "There comes a moment in a person's life when immediacy is ripe, so to speak, and when the spirit requires a higher form, when it wants to lay hold of itself as spirit.