Jesus
Are the stories about Jesus reliable eyewitness accounts?
Historians ask this the same way they'd ask it of any ancient biography: how close to the events, and how connected to firsthand sources?
The Gospels were written within the lifetime of people who could have remembered Jesus—decades after his death, not centuries. Luke explicitly says he investigated eyewitness accounts before writing. John's Gospel claims direct eyewitness testimony behind at least parts of it.
Scholars have also noticed something interesting: the Gospels include specific, named minor characters—Simon of Cyrene's sons, Jairus, Bartimaeus—details that add little to the theology but fit how eyewitness memories often work, naming people the original audience could still go and ask.
None of this settles every historical question. Scholars genuinely disagree about exactly who wrote each Gospel and how much editorial shaping happened along the way. But "written decades later by unnamed authors with zero connection to eyewitnesses" oversells the uncertainty. The honest picture is more mixed, and more interesting, than either extreme.
Bible quotations in these answers are generally taken from the Christian Standard Bible®, Copyright © 2017 by Holman Bible Publishers. Used by permission. Christian Standard Bible® and CSB® are federally registered trademarks of Holman Bible Publishers. Some biblical wording may be paraphrased or follow other translations.