Do not be troubbled by this question. Sometimes people try to discuss things that really dont matter and that they dont know.
Question: do you need to believe that the world was created in seven days to have salvation? or you must believe in Jesus, repent and start a new life way from sin to have salvation?
Did Jesus said that we had to believe in everything integrally that is written on the bible? Or did He just said to repent and follow Him.
what do you think that are the correct answers?
people sometimes diverge and create all kind of new dogmas and lose time debating on them! they say that you have to believe in A, B, and C to be saved. And really what you need is just to believe in A.
What it matters are the words of Jesus. We must free ourselfs from sin and repent and start a new way of living looking at Jesus example.
Just read the sermon of the mountain (Mathew chapter 5, 6 and 7). The knowlegde that you find there is pratically the only knowledge you will need.