John 11:25 Jesus said to her, 25 "I am the resurrection and the life; he who believes in Me will live even if he dies, 26 and everyone who lives and believes in Me will never die. Do you believe this?" 27 She said to Him, "Yes, Lord; I have believed that You are the Christ, the Son of God, even He who comes into the world." (NASB)
"Christianity is in its very essence a resurrection religion. The concept of resurrection lies at its heart. If you remove it, Christianity is destroyed." John R. W. Stott