They did it before the arrival of Muhammad. However, the corruption was at the peak during the first five centuries. The next five centuries saw a lot more.When did they change it?
Was it before Muhammed reead it or after?
We have thousands of manuscripts older than MY-HAM-HEAD THAT AGREE WITH OUT BIBLES TODAY.
You have thousands of manuscripts but not even two are alike. Let me present this from Wycliffe, who did the first translation of the Bible in English during the 14th Century:
" 1 In the bigynnyng was the word, and the word was at God, and God was the word.
2 This was in the bigynnyng at God.
3 Alle thingis weren maad bi hym, and withouten hym was maad no thing, that thing that was maad."
And now look at this fraud and forgery, which must have come after the 15th Century:
"John 1 Wycliffe Bible (WYC)
1 In the beginning was the word, and the word was at God, and God was the word.
[In the beginning was the word, that is, God's Son, and the word was at God, and God was the word.]
2 This was in the beginning at God.
3 All things were made by him, and without him was made nothing [nought], that thing that was made. "
See the fraud?
Wycliffe must have turned in his grave!!!
And now a great lie and distortion has a new translation: "In the beginning was the Word, and the Word was with God, and the Word was God. 2 He was with God in the beginning. "