Revelation 5:4

And I wept much, because no man was found worthy to open, and to read the book, neither to look thereon.

Daniel 12:8-9

I heard it well, but I understood it not. Then said I, "O my Lord, what shall happen after that?"

Revelation 4:1

After this I looked, and behold a door was open in heaven, and the first voice which I heard, was as it were of a trumpet talking with me, which said, "Come up hither, and I will show thee things which must be fulfilled hereafter.

Treasury of Scripture Knowledge

Summary

And I wept much, because no man was found worthy to open and to read the book, neither to look thereon.

Bible References

Because

Revelation 4:1
After this I looked, and behold a door was open in heaven, and the first voice which I heard, was as it were of a trumpet talking with me, which said, "Come up hither, and I will show thee things which must be fulfilled hereafter.
Daniel 12:8
I heard it well, but I understood it not. Then said I, "O my Lord, what shall happen after that?"