Aunt Sally's Recipe

"The Bible's been translated and recopied so many times..."

Can we know for certain that the New Testament has been handed down accurately?

That brings us to the realm called 'textual criticism'. Nice resource here, here and here.

But here is a simple, layman approach by Greg Koukl to explain how it works

Pretend your Aunt Sally has a dream in which she learns the recipe for an elixir that would continuously maintain her youth. When she wakes up, she scribbles the directions on a scrap of paper, then runs into the kitchen to make up her first glass. In a few days her appearance is transformed. Sally is a picture of radiant youth because of her daily dose of what comes to be known as "Aunt Sally's Secret Sauce."

Sally is so excited she sends hand-written instructions to her three bridge partners (Aunt Sally is still in the technological dark ages--no photocopier) giving detailed instructions on how to make the sauce. They, in turn, make copies which each sends to ten of her own friends.

All is going well until one day Aunt Sally's pet schnauzer eats the original copy of the recipe. Sally is beside herself. In a panic she contacts her three friends who have mysteriously suffered similar mishaps. Their copies are gone, too, so the alarm goes out to their friends in attempt to recover the original wording.

They finally round up all the surviving hand-written copies, twenty-six in all. When they spread them out on the kitchen table, they immediately notice some differences. Twenty-three of the copies are exactly the same. One has a misspelled word, though, one has two phrases inverted ("mix then chop" instead of "chop then mix") and one includes an ingredient that none of the others has on its list.

Here is the critical question: Do you think Aunt Sally can accurately reconstruct her original recipe? Of course she could. The misspelled words can easily be corrected, the single inverted phrase can be repaired, and the extra ingredient can be ignored.

Even with more numerous or more diverse variations, the original can still be reconstructed with a high level of confidence given the right textual evidence. The misspellings would be obvious errors, the inversions would stand out and easily be restored, and the conclusion drawn that it's more plausible that one word or sentence be accidentally added to a single copy than omitted from many.

This, in simplified form, is how the science of textual criticism works...