John's gospel prologue (1:1-5) aimed at refuting Gnosticism (the denial of Christ's deity).  These first five verses are a literary gem and the best capsule statement of Christ's eternal Deity found anywhere.  Misunderstanding the doctrinal truths of these verses results in a flawed, deficient understanding of Who Jesus is, which affects one's eternal destiny.  Serious! 

Christ's life is more worth knowing than your own!