Rev. 10:1 - NIV, NAB - in Tertullian De Corona
also, as he goes forth on a white horse, conquering and to conquer, receives a crown of victory; and another
Rev. 10:4 - NIV, NAB - in Origen Against Celsus Book VI
And once more, John, in teaching us the difference between what ought to be committed to writing and what not, declares that he heard seven thunders instructing him on certain matters, and forbidding him to commit their words to writing.
Rev. 10:9 - NIV, NAB - in Origen Against Celsus Book VI
but at the command of the Logos he swallowed the book, in order that its contents might not be written, and so made known to unworthy persons. John also is recorded to have seen and done a similar thing.