(John 1-14)
John is the most unique of the four gospels, not considered one of the "synoptics" (a fancy word which simply means "taking the same view." It is generally agreed that Matthew, Mark, and Luke all depend upon each other to some degree and were probably all written closely in time, in the 60s. Most modern scholars believe that Mark was written first and that Matthew & Luke are essentially expanded revisions, one of which also relies on the other.
John on the other hand was probably written as much as 30 years later and purposely avoids much of what is contained in the other three, with a few notable exceptions. Even when he does overlap, he tells the story his own way without the parallels we see in the synoptics. It's as if John is filling in the gaps, including extra details and telling us the "rest of the story" so to speak. This is seen most clearly in the first half of the book, before we get to the passage narrative where the parallels are harder to avoid.
Even though there is a wealth of distinctive material to talk about, the one that has always stood out to me is the account of raising Lazarus from the dead in chapter 11. In this story, when Jesus receives news that His friend is sick, He purposely waits - not just for him to die, but long enough that he will be entombed for four days, past the time any jew would believe that he could be revived. Of course, we know how the story plays out.
This reminds me that in the Lord's perfect timing, sometimes we will have to go through difficult trials, including death, so that He can receive the maximum glory. And as nice as it would be to conclude that each one of these will end in a miraculous resuscitation, we know this is not the case; this is a sign that point to our ultimate source of hope - our resurrection to eternal life. With this as our focus, we can endure any trial.