Holy Lance
The name of the soldier who pierced Christ's side with a "lonchē" is not given in the Gospel of John, but in the oldest known references to the legend, the apocryphal Gospel of Nicodemus appended to late manuscripts of the 4th century "Acts of Pilate", the soldier is identified as a centurion and called Longinus (making the spear's Latin name "Lancea Longini").
The Golden Arrow prayer
Sister Mary stated that Jesus told her that the two sins which offend him the most grievously are blasphemy and the profanation of Sunday. He called this prayer the "Golden Arrow", saying that those who would recite it would pierce Him delightfully, and also heal those other wounds inflicted on Him by the malice of sinners. Sr. Mary of St. Peter saw, "streaming from the Sacred Heart of Jesus, delightfully wounded by this 'Golden Arrow,' torrents of graces for the conversion of sinners.
This prayer appears in the book “The Golden Arrow”, the autobiography of Sr. Marie of St Peter. In her book she wrote that in her visions Jesus told her that an act of sacrilege or blasphemy is like a "poisoned arrow", hence the name “Golden Arrow” for this reparatory prayer.