In Proverbs 3:7-8 Spiritually we need to take care of ourselves just as physically . Doctors tell us that heathy bones need bone marrow. Bone marrow produces white blood cells that fight infection. Red blood cells carry oxygen and platelets help stop bleeding this also is produced in the marrow. Leukemia is a cancer of the blood or bone marrow that destroys its purpose. Fearing the Lord will protect us from our selves and from the evil one.