"In the beginning was the Word... The Word became flesh and lived for a while among us..." (1:1 & 17). "...the law was given through Moses; grace and truth came through Jesus Christ." (1:17). Jesus "...takes away the sin of the world!" (1:29). "...and gives life to the world." (6:33 & 51).
Jesus said, "The spirit gives life... The words I have spoken to you are spirit and they are life." (6:63). "...I have come that they may have life, and have it to the full." (10:10).
Chapter 13: "...Love one another. As I have loved you..." (13:34). "...anyone who believes in me will do what I have been doing. He will do even greater things..." (14:12). Study 15:1-17. "...If a man remains in me and I in him, he will bear much fruit..." (15:5). "...obey my commands... Love each other." (15:9 & 17).
Jesus prays for all believers in 17:20-26: "I have given them the glory that you gave me, that they may be one as we are one." (17:23). "...As the Father has sent me, I am sending you." (20:21). "...these are written that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name." (20:31).
John "...the one Jesus loved..." (13:23, 19:26, 20:2, 21:7 & 20) was the closest earthly friend of Jesus. John is also generally credited as the author of the book of Revelation as well as first, second and third John in the New Testament.
Some of the parables (stories) recorded in the Gospels can be difficult to understand. Partly because we do not have the same background experiences as people had nearly 2000 years ago, partly because people 2000 years ago did not have the level of scientific knowledge we have today, and partly because the parables were not meant to be fully understood until a later date. Jesus said, "...whatever I say is just what the Father has told me to say." (12:50). "Though I have been speaking figuratively, a time is coming when I will no longer use this kind of language but will tell you plainly about my Father." (16:25). Jesus comes to us as we are, where we are; but he doesn't leave us there!
Jesus is God's Word in the flesh, existing before the creation of our universe (see 10:38, 14:9+ & 17:5). "...I am in the Father, and you are in me, and I am in you." (14:20).