1 Corinthians 15:16-19

If the dead aren’t raised up, that would mean that Christ has not been raised up either. And if Christ is not alive, you are still lost in your sins and your faith is a fantasy. It would also mean that those believers in Christ who have passed away have simply perished. If the only benefit of our hope in Christ is limited to this life on earth, we deserve to be pitied more than all others!