Original sentence: Around year 200 in Carthage (modern Tunisia, Africa), Tertullian says: "We Christians wear out our foreheads with the sign of the cross".The Christian sign of the cross was originally made with the right hand thumb and across the forehead only.Vestiges of this practice remain: some Christians sign a cross on their forehead to hear the Gospels during Mass; foreheads are marked with an ash cross on Ash Wednesday; holy oil (called chrism) is applied on the forehead for the sacrament of Confirmation
Edited sentence: Around the year 200 in Carthage (modern Tunisia, Africa), Tertullian says: "We Christians wear out our foreheads with the sign of the cross".The Christian sign of the cross was originally made with the right-hand thumb across the forehead only.Vestiges of this practice remain: some Christians sign a cross on their forehead before hearing the Gospels during Mass; foreheads are marked with an ash cross on Ash Wednesday; holy oil (called chrism) is applied on the forehead for the sacrament of Confirmation