Revelation 5:4

And I began to weep loudly because no one was found worthy to open the scroll or to look into it.

Daniel 12:8-9

Now I myself heard, but I [did] not understand, and I said, "My lord, what [will be the] outcome [of] these [things]?"

Revelation 4:1

After these [things] I looked, and behold, an open door in heaven, and the former voice that I had heard like a trumpet speaking with me was saying, "Come up here and I will show you [the things] which must take place after these [things]."

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 these [things] I looked, and behold, an open door in heaven, and the former voice that I had heard like a trumpet speaking with me was saying, "Come up here and I will show you [the things] which must take place after these [things]."
Daniel 12:8
Now I myself heard, but I [did] not understand, and I said, "My lord, what [will be the] outcome [of] these [things]?"