1 Thessalonians 4:15

For this we declare to you on the Lord's own authority--that we who are alive and continue on earth until the Coming of the Lord, shall certainly not forestall those who shall have previously passed away.

1 Corinthians 15:51-53

I tell you a truth hitherto kept secret: we shall not all sleep, but we shall all be changed,

Matthew 17:25

"Yes," he replied, and then went into the house. But before he spoke a word Jesus said, "What think you, Simon? From whom do this world's kings receive customs or capitation tax? from their own children, or from others?"

2 Corinthians 4:14

For we know that He who raised the Lord Jesus from the dead will raise us also to be with Jesus, and will cause both us and you to stand in His own presence.

1 Thessalonians 2:19

For what is our hope or joy, or the crown of which we boast? Is it not you yourselves in the presence of our Lord Jesus at His Coming?

Treasury of Scripture Knowledge

Summary

For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.

Bible References

Asleep

1 Thessalonians 4:13
Now, concerning those who from time to time pass away, we would not have you to be ignorant, brethren, lest you should mourn as others do who have no hope.