Revelation 10:4
And when the seven thunders had uttered their voices, I was about to write: and I heard a voice from heaven, saying, Seal up the things which the seven thunders have uttered, and write them not.
Revelation 1:11
and heard behind me a great voice as of a trumpet, Saying, what thou seest, write in a book and send to the seven churches, to Ephesus, and to Smyrna, and to Pergamos, and to Thyatira, and to Sardis, and to Philadelphia, and to Laodicea.
Revelation 22:10
And he saith to me, Seal not the sayings of the prophecy of this book: the time is nigh.
Revelation 2:1-3
To the angel of the church at Ephesus write, These things saith he that holdeth the seven stars in his right-hand, that walketh in the midst of the seven golden candlesticks.