No man naturally walks in the way of life, nor can anyone simply figure it out on his own. All of us need the instruction found in God's Word in order to walk in the way that leads to life everlasting. If we refuse correction by God's Word, we sin against our own souls. If you choose to live apart from God, you rebel against him as you do your physical parents. Rebelling against our creator is sinning against yourself because we are supposed to be the reflections of our father.