Luke 9:32

Now Peter and the others were weighed down with sleep; but, keeping themselves awake all through, they saw His glory, and the two men standing with Him.

John 1:14

And the Word came in the flesh, and lived for a time in our midst, so that we saw His glory--the glory as of the Father's only Son, sent from His presence. He was full of grace and truth.

Matthew 26:40-43

Then He came to the disciples and found them asleep, and He said to Peter, "Alas, none of you could keep awake with me for even a single hour!

Luke 22:45-46

When He rose from his prayer and came to His disciples, He found them sleeping for sorrow.

John 17:24

"Father, those whom Thou hast given me--I desire that where I am they also may be with me, that they may see the glory--my glory--my gift from Thee, which Thou hast given me because Thou didst love me before the creation of the world.

2 Peter 1:16

For when we made known to you the power and Coming of our Lord Jesus Christ, we were not eagerly following cleverly devised legends, but we had been eye-witnesses of His majesty.

1 John 3:2

Dear friends, we are now God's children, but what we are to be in the future has not yet been fully revealed. We know that if Christ reappears we shall be like Him, because we shall see Him as He is.

Revelation 22:4-5

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 rose from his prayer and came to His disciples, He found them sleeping for sorrow.
Matthew 26:40
Then He came to the disciples and found them asleep, and He said to Peter, "Alas, none of you could keep awake with me for even a single hour!

They saw

John 1:14
And the Word came in the flesh, and lived for a time in our midst, so that we saw His glory--the glory as of the Father's only Son, sent from His presence. He was full of grace and truth.
John 17:24
"Father, those whom Thou hast given me--I desire that where I am they also may be with me, that they may see the glory--my glory--my gift from Thee, which Thou hast given me because Thou didst love me before the creation of the world.
2 Peter 1:16
For when we made known to you the power and Coming of our Lord Jesus Christ, we were not eagerly following cleverly devised legends, but we had been eye-witnesses of His majesty.
1 John 3:2
Dear friends, we are now God's children, but what we are to be in the future has not yet been fully revealed. We know that if Christ reappears we shall be like Him, because we shall see Him as He is.
Revelation 22:4
and His name will be on their foreheads.