To answer this question, scholars have to ask who wrote the gospels, when they wrote them, what was their objective in writing them, what sources the authors used, how reliable these sources were, and how far removed in time the sources were from the stories they narrate, or if they were altered later.
为了回答这个问题，学者必须质疑这些问题：谁写了福音书，当他们写福音书时，他们写作的目的是什么，作者使用了什么文献来源，这些来源有多可靠，这些来源在时间上距离他们叙述的故事有多远，这些来源后来是否发生了改变。