High Quality Content by WIKIPEDIA articles! The Parable of the Faithful Servant (or Parable of the Door Keeper) is a parable of Jesus found in three out of the four Canonical gospels in the New Testament. According to Matthew 24:42-51, Mark 13:34-37, and Luke 12:35-48 — often called the Synoptic Gospels — it is important for the faithful to keep watch.