Matthew 27:52

the tombs were opened, and many bodies of saints then sleeping in death rose

1 Corinthians 15:20

But in reality Christ has been raised from the dead, the first to be raised of those who have fallen asleep.

1 Thessalonians 4:14

For if we believe that Jesus died and rose again, then through Jesus, God will bring back with Him those who have fallen asleep.

John 5:25-29

I most solemnly say to you, a time is coming -- indeed, it is already here -- when the dead will listen to the voice of the Son of God, and those who listen to it will live.

Acts 7:60

Then he fell on his knees and cried out, "Lord, do not charge this sin on the book against them!" On saying this he fell asleep in death.

1 Corinthians 11:30

This is why many of you are sick and feeble, and a considerable number are falling asleep.

1 Corinthians 15:51

Let me tell you a secret. We shall not all fall asleep, but we shall all be changed,

1 Thessalonians 5:10

who died for us, so that whether we still live or sleep we may live in fellowship with Him.

Treasury of Scripture Knowledge

Summary

And the graves were opened; and many bodies of the saints which slept arose,

General references

Bible References

Many

John 5:25
I most solemnly say to you, a time is coming -- indeed, it is already here -- when the dead will listen to the voice of the Son of God, and those who listen to it will live.
1 Corinthians 15:20
But in reality Christ has been raised from the dead, the first to be raised of those who have fallen asleep.

Slept

1 Corinthians 11:30
This is why many of you are sick and feeble, and a considerable number are falling asleep.
1 Corinthians 15:51
Let me tell you a secret. We shall not all fall asleep, but we shall all be changed,
1 Thessalonians 4:14
For if we believe that Jesus died and rose again, then through Jesus, God will bring back with Him those who have fallen asleep.
1 Thessalonians 5:10
who died for us, so that whether we still live or sleep we may live in fellowship with Him.

General references

Mark 15:38
And the curtain of the sanctuary was torn in two, from top to bottom.
Luke 19:40
But He answered, "I tell you, if they keep silent, the stones will cry out!"