Which religion uses the image shown as a symbol of their faith?

The cross, the image shown, is the principal symbol of the Christian religion, recalling the Crucifixion of Jesus Christ and the redeeming benefits of his Passion and death. The cross is thus a sign both of Christ himself and of the faith of Christians. In ceremonial usage, making a sign of the cross may be, according to the context, an act of profession of faith, a prayer, a dedication, or a benediction.

The basic forms of the cross are the Latin cross with unequal arms and the Greek cross with equal arms, besides numerous variants, partly with confessional significance, such as the tau cross, the double-barred cross, triple-barred cross, cross-and-crosslets, and many heraldic variants, such as the cross potent, cross pattée, cross moline, cross fleury, etc.

For a few centuries, the emblem of Christ was a headless T-shaped Tau cross rather than a Latin cross. This cross is considered to have been originated from Pagan Druids who made Tau crosses of oak trees stripped of their branches, with two large limbs fastened at the top to represent a man's arm; this was Thau or god.