The wording was altered – either accidentally or deliberately – in some Greek manuscripts to say that God appeared in the flesh instead of ‘he.’ This is one of the most famous corruptions of the Bible text that researchers have found. It is corrected in most modern Bibles, but still appears in a few translations, such as the King James Version and the World English Bible.
Sir Isaac Newton even wrote a pamphlet about this corruption, which also covered the fake words of the ‘Johannine Comma’ too.