Matthew 26:40

And he cometh to the disciples, and findeth them asleep, and saith to Peter, What! Could ye not watch with me one hour?

Matthew 25:5

While the bridegroom delayed, they all slumbered and slept.

Matthew 26:35

Peter saith to him, If I must die with thee, yet will I in no wise deny thee. In like manner also said all the disciples.

Matthew 26:43

And he came and found them asleep again; for their eyes were weighed down.

Matthew 26:38

Then saith he to them, My soul is exceeding sorrowful even unto death: tarry ye here, and watch with me.

Mark 14:37

And he cometh and findeth them sleeping, and saith to Peter, Simon, sleepest thou?

Luke 9:32

But Peter and those with him were weighed down with sleep; and awaking they saw his glory, and the two men that stood with him.

Luke 22:45

And rising up from prayer, he came to his disciples,

Treasury of Scripture Knowledge

Summary

And he cometh unto the disciples, and findeth them asleep, and saith unto Peter, What, could ye not watch with me one hour?

Bible References

And findeth

Matthew 26:43
And he came and found them asleep again; for their eyes were weighed down.
Matthew 25:5
While the bridegroom delayed, they all slumbered and slept.
Mark 14:37
And he cometh and findeth them sleeping, and saith to Peter, Simon, sleepest thou?
Luke 9:32
But Peter and those with him were weighed down with sleep; and awaking they saw his glory, and the two men that stood with him.
Luke 22:45
And rising up from prayer, he came to his disciples,

What

Matthew 26:35
Peter saith to him, If I must die with thee, yet will I in no wise deny thee. In like manner also said all the disciples.

General references

Matthew 26:70
But he denied before all, saying, I know not what thou sayest.
Mark 13:33
Take heed; watch and pray: for ye know not when the time is.
1 Corinthians 10:12
Therefore let him that standeth, take heed, lest he fall.