On Maundy Thursday the church remembers the last evening Jesus shared with his disciples in the upper room before his arrest and crucifixion. Maundy Thursday marks three key events in Jesus’ last week:
- His washing of his disciples’ feet,
- His institution of the Lord’s Supper, and
- His new commandment to love one another.
This service begins the Triduum, the three-day period from sunset on Thursday to sunset on Easter Day. The name “Maundy Thursday” comes from the Latin mandatum novum, referring to the “new commandment” Jesus taught his disciples (John 13:34). In other words, this is “new commandment Thursday.”
—The Worship Sourcebook, p. 593. Reformatted for readability.