The link between the Testaments is crucial, not coincidental. The Gospel develops and puts into action the promises and patterns of the previous era. When compared to the other Gospels, John makes substantial use of the Old Testament. It is impossible to estimate the price due to the difficulties in creating a set criterion for quoting. It is estimated that John uses about half of the New Testament when quoted accurately.
John's audience would have been familiar with the Scriptures. They may have even been able to provide quotations themselves. In order to write concisely, John includes all necessary information from prior passages. He does this by referencing the Old Testament itself, or using its terminology. For example, when Jesus says "I am the Way, the Truth, and the Life," he is referring to Isaiah 40:9.
John also refers to Psalms and Proverbs, two important books in the Bible. His use of these texts shows that he is aware of their importance and they help to establish his message as true and reliable.
Finally, John mentions specific events from the Old Testament at key moments in the Gospel. For example, he tells us that water was needed after the crucifixion, so Jesus said "now stop what you are doing and follow me." This quotation comes from Mark 14:13-14. We can therefore conclude that John is aware of important events that will trigger memories for his audience.
The Gospel of John, which was written after the Synoptic Gospels, does not tend to replicate what is found in the other gospels. When he does, it's generally to make a connection with another account. John appears to presume that the readers are already familiar with the other gospels. Thus, he can focus on explaining Jesus' identity and mission through the eyes of his audience.
John wrote the Gospel of John for several reasons. First, as mentioned, he wanted to explain who Jesus is and why he came into the world. Second, he wanted to encourage those who knew Jesus but were losing faith because they could not understand his words about his coming death.
Third, John wanted to preserve his own testimony about Jesus. Since he was not one of the original apostles, he had no reason to believe that his life would be important to the story of the church. But God used his writing to help spread the word about Jesus, so this reason is also prophetic.
Fourth, John was likely motivated by his love for Christ to record these things for future generations to read. He probably thought that since there would be no one alive when he was done recording everything he knew about Jesus that he should at least try to get it all down before he died.
Finally, John wanted to give glory to his heavenly Father. Through his writings, he prayed for those who would read later and believe in Jesus, too.
The Gospel of John is distinct from the "synoptic Gospels" (Matthew, Mark, and Luke), so-called because of their content similarities. Many of the same miracles, parables, and occurrences are included in the Synoptics...
It covers the fundamentals of Jesus' mission, such as his preaching, miracles, trial, crucifixion, and resurrection. It was most likely composed after the synoptic Gospels, approximately 90 a.d. The true author of John's Gospel was most likely an interpretation of John, one of Jesus' earliest followers. His purpose was to explain what had happened since Jesus' death.
John's Gospel is divided into five sections (called "chapters"):
1 An introduction which tells how Jesus came into the world and explained who he was (1:1-18).
2 Three chapters describing Jesus' ministry (1:19-50; 2:1-51; 3:1-36).
3 Two chapters on Jesus' miraculous powers (4:48-54; 5:20-47).
4 One chapter explaining why Jesus must die (11:16-45).
5 An epilogue telling of Jesus' resurrection (20:1-31).
Chapter 1 of John gives us a brief overview of who Jesus is and what he has come to do for humanity. Chapter 11 concludes by saying that Jesus will come again to save everyone who believes in him. This means that everyone who has ever lived or will ever live will have the opportunity to accept or reject Jesus as their Savior.