25 Jesus said to her, “I am the resurrection and the life. The one who believes in me will live, even though they die; 26 and whoever lives by believing in me will never die. Do you believe this?”
27 “Yes, Lord,” she replied, “I believe that you are the Messiah, the Son of God, who is to come into the world.”
This is a part of the story of Death of Lazarus. And even it's how Martha confess to Jesus Christ that He is the Messiah and the Son of God.