Contradiction with Daniel 12:4
Daniel is instructed to seal the words of the scroll until the time of the end, which contrasts with the instruction in Revelation 22:10 to not seal the words of the prophecy.
Daniel 12:4: But thou, O Daniel, shut up the words, and seal the book, [even] to the time of the end: many shall run to and fro, and knowledge shall be increased.
Contradiction with Isaiah 29:11
The vision is compared to a sealed book, where people cannot read it, contradicting the open nature of Revelation 22:10.
Isaiah 29:11: And the vision of all is become unto you as the words of a book that is sealed, which [men] deliver to one that is learned, saying, Read this, I pray thee: and he saith, I cannot; for it [is] sealed: [book: or, letter]
Contradiction with Matthew 13:11
Jesus speaks of the mysteries of the kingdom of heaven being given to some and not others, which contrasts with the openness encouraged in Revelation 22:10.
Matthew 13:11: He answered and said unto them, Because it is given unto you to know the mysteries of the kingdom of heaven, but to them it is not given.
Contradiction with 2 Corinthians 12:4
Paul mentions hearing unspeakable words not lawful to be uttered, in contrast to the open sharing of prophecy in Revelation 22:10.
2 Corinthians 12:4: How that he was caught up into paradise, and heard unspeakable words, which it is not lawful for a man to utter. [lawful: or, possible]
Contradiction with Revelation 10:4
John is commanded to seal up and not write what the seven thunders said, which contradicts the directive to not seal in Revelation 22:10.
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 unto me, Seal up those things which the seven thunders uttered, and write them not.