Matthew 27:52

1 Corinthians 15:20 NIV
But Christ has indeed been raised from the dead, the firstfruits of those who have fallen asleep.

Isaiah 26:19 NIV
But your dead will live, Lord; their bodies will rise— let those who dwell in the dust wake up and shout for joy— your dew is like the dew of the morning; the earth will give birth to her dead.

John 5:25-29 NIV
Very truly I tell you, a time is coming and has now come when the dead will hear the voice of the Son of God and those who hear will live. For as the Father has life in himself, so he has granted the Son also to have life in himself. And he has given him authority to judge because he is the Son of Man. “Do not be amazed at this, for a time is coming when all who are in their graves will hear his voice and come out—those who have done what is good will rise to live, and those who have done what is evil will rise to be condemned.