Holy Lance
The Holy Lance, also known as the Lance of Longinus (named after Saint Longinus), the Spear of Destiny, or the Holy Spear, according to the Gospel of John, is the lance that pierced the side of Jesus as he hung on the cross.
Crucifixion
The New Testament writings about the crucifixion of Jesus do not specify the shape of that cross, but the early writings that do speak of its shape liken it to the letter T. William Barclay notes that, because the letter T is shaped exactly like the "crux commissa" and because the Greek letter T represented the number 300, "wherever the fathers came across the number 300 in the Old Testament they took it to be a mystical prefiguring of the cross of Christ". The earliest example, possibly of the late first century, is the Epistle of Barnabas. Clement of Alexandria (c. 150 – c. 215) is another early writer who gives the same interpretation of the numeral used for 300. Justin Martyr (c. 100–165) sees the cross of Christ represented in the crossed spits used in roasting the Passover Lamb: "That lamb which was commanded to be wholly roasted was a symbol of the suffering of the cross which Christ would undergo. For the lamb, which is roasted, is roasted and dressed up in the form of the cross. For one spit is transfixed right through from the lower parts up to the head, and one across the back, to which are attached the legs of the lamb."