Luke 9:32

Peter and his companions had been overcome by sleep, but waking up they saw his glorious appearance and the two men standing by him.

John 1:14

So the Word became flesh and blood and lived for a while among us, abounding in blessing and truth, and we saw the honor God had given him, such honor as an only son receives from his father.

Matthew 26:40-43

When he went back to the disciples he found them asleep. And he said to Peter, "Then were you not able to watch with me for one hour?

Luke 22:45-46

When he got up from his prayer, he went to the disciples and found them asleep from sorrow.

John 17:24

Father, I wish to have those whom you have given me with me where I am, to see my glory that you have given me, for you loved me before the creation of the world.

2 Peter 1:16

For they were no fictitious stories that we followed when we informed you of the power of our Lord Jesus Christ and of his coming, but we had been eye-witnesses of his majesty.

1 John 3:2

Dear friends, we are God's children now; it has not yet been disclosed what we are to be. We know that if he appears, we shall be like him, for we shall see him as he is.

Revelation 22:4-5

they will see his face, and his name will be on their foreheads.

Treasury of Scripture Knowledge

Summary

But Peter and they that were with him were heavy with sleep: and when they were awake, they saw his glory, and the two men that stood with him.

Bible References

Were heavy

Luke 22:45
When he got up from his prayer, he went to the disciples and found them asleep from sorrow.
Matthew 26:40
When he went back to the disciples he found them asleep. And he said to Peter, "Then were you not able to watch with me for one hour?

They saw

John 1:14
So the Word became flesh and blood and lived for a while among us, abounding in blessing and truth, and we saw the honor God had given him, such honor as an only son receives from his father.
John 17:24
Father, I wish to have those whom you have given me with me where I am, to see my glory that you have given me, for you loved me before the creation of the world.
2 Peter 1:16
For they were no fictitious stories that we followed when we informed you of the power of our Lord Jesus Christ and of his coming, but we had been eye-witnesses of his majesty.
1 John 3:2
Dear friends, we are God's children now; it has not yet been disclosed what we are to be. We know that if he appears, we shall be like him, for we shall see him as he is.
Revelation 22:4
they will see his face, and his name will be on their foreheads.