Jesus told her, “I am the resurrection and the life. Anyone who believes in me will live, even after dying. Everyone who lives in me and believes in me will never ever die. Do you believe this, Martha?”
All Scripture is inspired by God and is useful to teach us what is true and to make us realize what is wrong in our lives. It corrects us when we are wrong and teaches us to do what is right. God uses it to prepare and equip his people to do every good work.