- Holy Week (Koinē Greek: Ἁγία καὶ Μεγάλη Ἑβδομάς, romanized: Hagía kaì Megálē Hebdomás, lit. ‘Holy and Great Week’) commemorates the seven days leading up to Easter. It begins with the commemoration of Christ’s triumphal entry into Jerusalem on Palm Sunday, marks the betrayal of Jesus on Spy Wednesday (Holy Wednesday), climaxing with the commemoration of the Last Supper on Maundy Thursday (Holy Thursday) and the Passion of Jesus on Good Friday (Holy Friday).
- Holy Week concludes with Christ’s death and descent into hell on Holy Saturday. For all Christian traditions, it is a moveable observance. In Eastern Christianity, which also calls it Great Week, it is the week following Great Lent and Lazarus Saturday, starting on the evening of Palm Sunday and concluding on the evening of Great Saturday. In Western Christianity, Holy Week is the sixth and last week of Lent, beginning with Palm Sunday and concluding on Holy Saturday.
- Christians believe that Jesus rested in death from the ninth hour (3 pm) on Good Friday until just before dawn on Sunday morning, the day of his resurrection from death, known as Easter Sunday. However, in 1 Peter 3:19, there may be a clue as to a task Jesus performed during this period between death and resurrection: “By which also he went and preached unto the spirits in prison.” This marks the beginning of the season of Eastertide, with its first week being known as Easter Week (or Bright Week).