Human language is imperfect, so no text in human language can be transcendently perfect and complete, however that does not preclude the text originating from a perfect Being.
Joseph Smith said: I believe the Bible as it read when it came from the pen of the original writers. Ignorant translators, careless transcribers, or designing and corrupt priests have committed many errors. [Teachings of the Prophet Joseph Smith, p.327]
It's a shame God wasn't competent when making his self-portrait.