Jesus identifies Himself as the bread that came down from heaven. He also says that whoever eats of that bread, that is whoever believes in Him will live eternally. Jesus is a King but more than that He is also a prophet and a priest. He intercedes for believers before the Father and He has sent the Holy Spirit to work through the Word to bring one to faith in Him as the King of Kings and Lord of Lords. Death is the great equalizer.
Death comes to all no matter whether they are poor or rich, powerful or weak, famous or obscure.
Death is no respecter of age either. Death comes to young and old. The answer is Jesus Christ. The Word that Christ is talking about is the Holy Bible. And in the Holy Bible there are the promises of God.