For I determined not to know any thing among you, save Jesus, and Him crucified.(I Corinthians 2:2). The symbol of the cross of Jesus Christ is not just for fashion buy it is a symbol of teaching i.e. the suffering of Jesus Christ for the remission of our sin on the cross. Jesus was not killed by anybody, He died for His own decisions. The greatest of all sin is selfishness and Jesus broke the power of selfishness by offering Himself for us all.