Revelation 10:4
KJV
And when the seven thunders had uttered their voices, I was about to write: and I heard a voice from heaven saying unto me, Seal up those things which the seven thunders uttered, and write them not.
NIV
And when the seven thunders spoke, I was about to write; but I heard a voice from heaven say [omit], “Seal up what the seven thunders have said and do not write it down.”
In a mysterious passage like this, every word could have its own nuanced purpose. Distorting words such as “uttered their voices” could break potential cross references (E.g. Rev. 4:5, 8:5, 11:19, 16:18) or even alter the meaning intended by God.
Scripture taken from the Holy Bible, NEW INTERNATIONAL VERSION®, NIV® Copyright © 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. NEW INTERNATIONAL VERSION® and NIV® are registered trademarks of Biblica, Inc. Use of either trademark for the offering of goods or services requires the prior written consent of Biblica US, Inc.