Revelation 10:4

And when the seven thunders had spoken, I was about to write; and I heard a voice from heaven, saying: Seal up the things which the seven thunders spoke, and write them not.

Treasury of Scripture Knowledge

Summary

And he said, Go thy way, Daniel: for the words are closed up and sealed till the time of the end.

Bible References

Closed

Revelation 10:4
And when the seven thunders had spoken, I was about to write; and I heard a voice from heaven, saying: Seal up the things which the seven thunders spoke, and write them not.