"..... eyewitness claims are typically corroborated by limited pieces of evidence verifying only a portion of the larger account.
Imagine, for example, a witness testifies a robbery suspect approached a bank teller, pointed a gun at her (using his right hand), began to climb up onto the counter (using his left hand), screamed at the teller, and demanded she give him the money from the cash drawer.
Prosecutors may introduce fingerprint (or shoeprint) evidence from the counter in an effort to corroborate the witness. If the fingerprints on the counter match the fingerprints from the suspect’s left hand and the shoeprint matches the suspect’s shoe, the statement of the witness would be considered reliable and corroborated by the evidence, even though this corroborative evidence would tell us nothing about what the suspect screamed or whether or not he had a weapon.
In a similar way, abundant touch-point corroboration exists to verify the New Testament accounts, even though this evidence is unsurprisingly fractional.
From archaeology, to fulfilled prophecy, to the ancient statements of early non-Christian authors, to the internal evidence of language, proper nouns and cultural details, the New Testament Gospels are corroborated better than any other ancient text. Period."
J.W. Wallace
This is the disciple which testifieth of these things and wrote these things: and we know that his testimony is true. And there are also many other things which Jesus did, the which, if they should be written everyone, I suppose that even the world itself could not contain the books that should be written. Amen.
John 21:24.25