Mark 14:37

And he came and found them sleeping, and said to Peter, Simon, do you sleep? Could you not watch one hour?

Matthew 25:5

And while the bridegroom delayed, all slumbered and slept;

Matthew 26:40

And he came to the disciples and found them sleeping, and said to Peter, Are you so unable to watch with me one hour?

Mark 14:29-31

But Peter said to him, Even if all should be offended, yet I will not.

Mark 14:40-41

And again coming he found them sleeping; for their eyes were heavy; and they knew not what to answer him.

Luke 9:31-32

who appearing in glory spoke of his departure which he was about to accomplish at Jerusalem.

Luke 22:45-46

And rising from prayer, and coming to the disciples, he found them sleeping from grief,

1 Thessalonians 5:6-8

Therefore let us not sleep as others, but let us watch and be sober.

Hebrews 12:3

For consider him that has endured such a contradiction from sinners, that you may not become faint and weary in your minds.

Treasury of Scripture Knowledge

Summary

And he cometh, and findeth them sleeping, and saith unto Peter, Simon, sleepest thou? couldest not thou watch one hour?

Couldest

General references

Bible References

Simon

Mark 14:29
But Peter said to him, Even if all should be offended, yet I will not.
Matthew 25:5
And while the bridegroom delayed, all slumbered and slept;
Matthew 26:40
And he came to the disciples and found them sleeping, and said to Peter, Are you so unable to watch with me one hour?
1 Thessalonians 5:6
Therefore let us not sleep as others, but let us watch and be sober.

Couldest

Hebrews 12:3
For consider him that has endured such a contradiction from sinners, that you may not become faint and weary in your minds.

General references

Mark 13:33
Observe, watch, for you know not when the time is.