Most people with a sound mind will do about anything to stay alive. When a death threatening danger confronts them, the adrenalin kicks in and they struggle and fight as hard as they can to survive, The will to live and to do what it takes to live, including the adrenalin rush, is something God put in us when He created us.
There is, however, a place to walk in life that brings us above the normal place of fear that so many struggle with. In Psalms 23:4, David testified, “Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me,”
Have you ever faced death? Have you been in a situation where you thought, “This is it. I’m not going to survive this one.”? Or, perhaps you’ve been at the bedside of a friend or relative that was about to pass on. This has an effect on a person like nothing else can. You are face to face with the reality of how short life is and how weak we as human beings really are.
During his lifetime, David had faced death very often, but he had a relationship with the Good Shepherd to the extent that he could say at a time like that, “I will fear no evil”. This is something that those who do not have such a relationship, cannot understand.
Let There Be Life 