In order to study the Bible correctly, you must start with the whole, understanding how the individual parts make it up, and then examine its individual parts. If you do not understand the whole, you cannot rightly understand the individual parts and how they work together to form the whole. You cannot start with the individual parts and expect to figure out the whole. Anyone who says any different has no clue what they are talking about. They are wishful thinkers spewing nonsensical ludicrousness.
Think of it like a 500-piece or 1000-piece puzzle. The whole (the completed puzzle) explains the minute (the individual pieces). You have to see the whole in order to make sense of the minute. The minute (the individual pieces) come together to form the whole (the completed puzzle), but looking at them all by themselves and never assembling them will give you no sense of the whole. Why do most people look at the box top while they are assembling the pieces? Because the whole (the completed puzzle) explains the minute (the individual pieces). Without seeing the whole (the box top) and understanding it, you are merely mucking about blindly in an attempt at trying to associate pieces, even connecting pieces that do not actually go together simply because they "fit" and "look similar." Without knowledge of the whole, you cannot rightly understand and assemble the individual parts.
Think of it like uncovering a pile of skeletal bones. Unless you see the whole, you do not know how those bones are to be connected. When you see the whole (a complete skeleton), you know exactly how those individual bones are to be assembled in order to achieve the whole. Look at archaeologists throughout history and the number of times they have incorrectly assembled bones. Prior to Iguanadon as we see and know him today, there were at least two different renderings for this animal in the past, both looking like some kind of a horse-like Godzilla creature. There is another dinosaur for which archaeologists have only ever found two arm bones and three vertebrae. Yet, they give us a complete image of how this creature supposedly looked, as well as an elaborate fairy tale about the creature. If you never saw a human being in your entire life, and all you found were two arm bones and three vertebrae, you could not accurately depict how human beings looked. Likewise, you can have all the individual skeletal bones you want, and you will fidget and fidget trying to assemble them correctly the way they are meant to be assembled. It is only by seeing and understanding the whole that you can accurately assemble the individual.