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").
Magic sword
The Bible relates in the Book of Genesis how God, seeking to deter Adam and Eve from returning to the Garden of Eden, "placed at the east of the garden of Eden Cherubim and a flaming sword which turned every way". By some accounts, the Cherubim are replaced with the Archangel Michael, who wields a similar weapon.
King David was given the sword of the slain giant Goliath by the priest Ahimelech, to which was attached extra-biblical mythology and traditions.
In the Book of Revelation, Jesus is symbolically described wielding a double-edged sword that proceeds out from his mouth, in reference to the "sword of the spirit" which is the "word of truth".