Revelation 22:10

Then he said to me: "Do not seal up the words of prophecy contained in this book, for the time of their coming true is near.

Revelation 10:4

When the seven thunders had rumbled, I was going to write it down, but I heard a voice from heaven say: "Seal up what the seven thunders have said, and do not write it down!"

Treasury of Scripture Knowledge

Summary

And the vision of the evening and the morning which was told is true: wherefore shut thou up the vision; for it shall be for many days.

Bible References

Wherefore

Revelation 10:4
When the seven thunders had rumbled, I was going to write it down, but I heard a voice from heaven say: "Seal up what the seven thunders have said, and do not write it down!"
Revelation 22:10
Then he said to me: "Do not seal up the words of prophecy contained in this book, for the time of their coming true is near.