In his famous book “The Mortification of Sin,” John Owen writes, “Be killing sin or sin will be killing you.” This inspired our hand-drawn skull and crossbones over a cutlass sword in the shape of the Chi Rho. The Chi-Rho is an historic Christian symbol that represents “Christ,” formed by superimposing the first two letters of the Greek word for Christ—which are Chi (Χ) and Rho (Ρ).