I want to demonstrate how context (or lack thereof) alters our perspective of things using a scene from Doctor Who. The episode "Smith and Jones" opens with Martha Jones (Freema Ageyman) walking to work, when she is approached by The Doctor (David Tenant). He invades her personal space, announces "like so", removes his tie, triumphantly declares "see", and walks off, leaving her very confused. Lacking context, the first time viewer might likewise be confused.
As the episode goes on, Martha goes to her job as a nurse, where she finds The Doctor posing as a patient. She asks him about the incident, but he tells her that didn't happen. The episode plays out, and together with Martha, The Doctor saves the day. With the episode drawing to a close, The Doctor and Martha talk outside the TARDIS (for those unfamiliar with the show, that's his space ship/time machine). He tells her it's a time machine, but she is skeptical. So, he steps inside, it disappears for a moment, then returns. The Doctor steps out holding his tie in his hand. "Told you", he says, putting his tie back on.
Lacking context, the original scene of The Doctor taking his tie off seems incredibly bizarre. However, by the end of the episode, we see that it is The Doctor's way of proving his point to Martha. Even lacking full knowledge of the end of that particular episode, those who are familiar with the series could have been able to guess that time travel had something to do with it, even if they weren't sure exactly what that might be.
When we read the Bible, we find a lot of things that make no sense if we don't know exactly what's going on. However, with the context of what came before, what came after, or both, we understand these things in better light. They cease to be strange (or at least, as strange), and so we gain the full intended benefit from them. Lacking context, you can make the Bible seem as ridiculous as a 900 year old time lord saving a hospital that was teleported to the moon by a group of alien rhino police. But the more context you have, the harder it becomes to argue against the Lord God of Israel.
Unfortunately, whether out of malice or ignorance, people do try. This is because we, as a species, are sinners. Even when we know the truth about God, we don't always like it, and so we rebel in many ways. This is called "sin", for which God declares we deserve death. But the thing about God is He takes no pleasure in the death of the wicked, and so He left room for His mercy. Substitution is possible, and thankfully, the only valid substitute did volunteer. Jesus Christ, the sinless Son of the Living God, died on behalf of all sinners. Therefore, those same sinners can have eternal life. There is a condition. We must repent of our sin, confess Jesus as Lord, and believe He rose from the dead. Do that, and you receive eternal life. Like so.