Believing is (was) not always based on “Blind Faith.”
Many times (as many have experienced throughout history), certain (Godly) occurrences are (were) bestowed as gifts – which are (were) then beyond questions, and are (were) known going forward as Indisputable Facts. Along with the latter/former, there also are (and were) many Infallible Proofs, to coincide.
At that time you will be given what to say, For it will not be you speaking, but the Spirit of your Father speaking through you.
Awakenings 
“If you’re [a rigid atheist] having trouble interpreting particular Bible verse[s], it’s because the [various] interpretation[s]” are, of course, beyond your allowable perceptions of discernable reality. The related “ancient document[s] [were] authored by [clearly inspired and touched] men” who were moved undoubtedly by spiritual callings. Consequently, and of course, again, “[those] words [would] have no [embraceable] relevance [within your current void of holy] experience[s].”
And the disciples came and said to Him, “Why do You speak to them in parables?” He answered: “Because it has been given to you to know the mysteries of the kingdom of heaven, but to them it has not been given.” “Because seeing they do not see, and hearing they do not hear, nor do they understand.”
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