Matthew 26:40

And he cometh to the disciples, and findeth them sleeping, and he saith to Peter, Is it so, that ye have not strength to watch with me one hour?

Matthew 25:5

But as the bridegroom stayed long, they all slumbered and slept.

Matthew 26:35

Peter said to him, Though I should die with thee, never will I deny thee. In like manner also said all the disciples.

Matthew 26:43

And coming, he found them asleep again, for their eyes were weighed down.

Matthew 26:38

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

Mark 14:37

And he came and found them asleep: and saith unto Peter, Sleepest thou? hast thou not strength to watch with me a single hour?

Luke 9:32

But Peter and they who were with him were weighed down with sleep: but when they awoke, they beheld his glory, and the two men who were standing with them.

Luke 22:45

And when he rose up from prayer, on coming to his disciples, he found them sleeping from sorrow.

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 coming, he found them asleep again, for their eyes were weighed down.
Matthew 25:5
But as the bridegroom stayed long, they all slumbered and slept.
Mark 14:37
And he came and found them asleep: and saith unto Peter, Sleepest thou? hast thou not strength to watch with me a single hour?
Luke 9:32
But Peter and they who were with him were weighed down with sleep: but when they awoke, they beheld his glory, and the two men who were standing with them.
Luke 22:45
And when he rose up from prayer, on coming to his disciples, he found them sleeping from sorrow.

What

Matthew 26:35
Peter said to him, Though I should die with thee, never will I deny thee. In like manner also said all the disciples.

General references

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