A corollary to my previous post:
When an honest investigator looks for evidence, they don't reject as false everything that doesn't line up with their first ideas. Instead they gather the evidence and weigh it, considering the likelihood of each piece being valid independently. We as Christians approach this slightly differently, starting with the certainty that the Bible is accurate.
There are two potential problems with this approach: the first is that we assume we hold to Scripture when in fact what we hold is merely an interpretation of Scripture (we MUST hold our interpretations gently, knowing that we as fallible humans don't know everything); the second is that we treat everything other than the Bible as "false", not true at all, and/or of no value whatsoever.
So let's put this thread topic into the light of these caveats:
Sources outside the Bible are NOT "necessarily" wrong. They may contain historical truth, even though that truth may be cloaked in "mythology" and in worldviews we now know to be incorrect. They probably are not wholly accurate and certainly aren't the word of God, but it's unlikely that they are completely false. Treat them accordingly.
Let's not let our understanding (interpretation) of Scripture, particularly on secondary or tertiary matters, limit our ability to consider alternate explanations for things. Simply put, Scripture does not tell us all the details about this topic (or really about anything), and doesn't instruct us to make up the details (or dogmatic extrapolations!) where it is silent.