John’s Gospel message can be summed up in several different ways. For many, the heart of the Johannine message is John 3:16, “For God so loved the world that he gave his only begotten son that any who believe in him may not perish, but have everlasting life.” That’s a good one, and so is the very next one, “God did not send his son to condemn the world, but that the world through him might be saved.”
There are also the seven “I am” statements in which Jesus not-so-subtly declares himself by the unspeakable name of God.