Question: where did the sign of the cross come from

title: Sign of the cross
text: The Cross is a symbol representing Christ 's victory over sin and death . The sign of the cross was originally made in some parts of the Christian world with the right - hand thumb across the forehead only . In other parts of the early Christian world it was done with the whole hand or with two fingers . Around the year 200 in Carthage ( modern Tunisia , Africa ) , Tertullian wrote : `` We Christians wear out our foreheads with the sign of the cross '' . Vestiges of this early variant of the practice remain : in the Roman Rite of the Mass in the Catholic Church , the faithful make this gesture on the forehead , on the lips , and on the heart at the proclamation of the Gospel ; on Ash Wednesday a cross is traced in ashes on the forehead ; holy oil ( called chrism ) is applied on the forehead for the sacrament of Confirmation ( called the Holy Mystery of Chrismation in the Eastern Orthodox Church , as Orthodox call the Sacraments by the name `` Holy Mystery '' ) . By the 4th century , the sign of the cross involved other parts of the body beyond the forehead . 

Answer: answer: The Cross is a symbol representing Christ's victory over sin and death. The sign of the cross was originally made in some parts of the Christian world with the right hand thumb across the forehead only. By the 4th century, the sign of the cross involved other parts of the body beyond the forehead.