This Friday is the 13th. A very dreaded and unlucky day! As for the origin of this strongly embedded superstition concerning Friday the 13th and for the general desired to avoid anything numbered thirteen, people will point to the story of the Last Supper and subsequent crucifixion. Jesus Christ and his disciples met for that Last Supper on Thursday. The last and 13th guest to arrive was Judas who betrays Jesus, leading to his crucifixion the following day—Friday!