“For what profit is it to a man if he gains the whole world, and loses his own soul?” (Matt. 16:26). Christ died for Christians to deliver them from the death and to give the eternal life. However, as the author points out, even Christians easily forget this precious truth. They forget that God can call them tonight. They concern about a variety of earthly matter without thinking about the eternal life with God. To think about the death is useful to reflect the identity of