The passage which is to be before us has long been the subject of controversy. Its authenticity has been questioned even by godly men. John 7:53 to 8:11 is not found in a number of the most important of the ancient manuscripts. The R.V. places a question mark against this passage. Personally I have not the slightest doubt but that it forms a part of the inspired Word of God, and that for the following reasons:
First, if the passage was a spurious one, then we should have to pass straight from John 7:52 to 8:12. Let the reader try this, and note the effect; and then let him go back to John 7:52 and read straight through to John 8:14. Which seems the more natural and reads the more smoothly?
Second, if we omit the first eleven verses of John 8 and start the chapter with verse 12, several questions will rise unavoidably and prove very difficult to answer satisfactorily. For example: "Then spoke Jesus" — when? What simple and satisfactory answer can be found in the second part of John 7? But give John 8:1-11 its proper place, and the answer is, Immediately after the interruption recorded in verse 3. "Then spoke Jesus again to them" (verse 12) — unto whom? Go back to the second half of John 7 and see if it furnishes any decisive answer. But give John 8:2 a place, and all is simple and plain. Again in verse 13 we read, "The Pharisees therefore said unto him": this was in the temple (verse 20). But how came the Pharisees there? John 7:45 shows them elsewhere. But bring in John 8:1-11 and this difficulty vanishes, for John 8:2 shows that this was the day following.
In the third place, the contents of John 8:1-11 are in full accord with the evident design of this section of the Gospel. The method followed in these chapters is most significant. In each instance we find the Holy Spirit records some striking incident in our Lord’s life, which serves to introduce and illustrate the teaching which follows it. In John 8:12 Christ declares, "I am the light of the world," and the first eleven verses supply us with a most striking illustration and solemn demonstration of the power of that "light." Thus it may be seen that there is an indissoluble link between the incident recorded in John 8:1-11 and the teaching of our Lord immediately following.
Adapted from The Exposition of the Gospel of John, Chapter 28, by A.W. Pink.