Even mountains are worn down into hills and rocks crumble into sand. But when someone believes in Jesus Christ, you are part of God's Kingdom. God wants us to cherish our lives and our bodies and take good care of ourselves here on earth. But sometimes people don't do that. Some people eat really bad foods or too much food or not enough food.
Some people take drugs or smoke cigarettes which hurt their bodies.
Some people do foolish, dangerous things. These people don't mean to hurt their bodies, but sometimes they do. Some other people get so sad or angry or hopeless that they think they don't want to be alive anymore. Then they need help right away from professional mental health doctors. The prophet Isaiah says that the Christ would have nothing about his appearance to make people want to follow him.