How about
Genesis 32:22-32 Where Jacob wrestles with God. Or the story the the gobal flood in Noah's day (when the older tale,"Epic of Gilgamesh" exists.) Personally I believe these stories (as with every other story in the Bible.) But I'll use them as an example. How do we know that these aren't the Jewish fables in Titus?
With Jacob there were historical names and places named as well as Jacob's name changed to Israel plus the evidence that he from then on limped. If the name 'Israel' came about on account of a myth, then we have big problems. (I guess some people would thinks so).
With the flood, Jesus put His stamp of approval on the account Luke 17:26-27 and in interesting passage in Hebrews hints at 'the worldwide flood'...
By faith Noah, being warned of God of things not seen as yet, moved with fear, prepared an ark to the saving of his house;
by the which he condemned the world, and became heir of the righteousness which is by faith.
(Heb 11:7)
The 'Epic of Gilgamesh' an early Mesopotamia poem may only tie in to later Greek Myth's ...little to do with reality.
I would recommend a book 'Myth, Allegory and Gospel' by John Warwick Montgomery.