The Gospel of John is an easy read for first-time seekers and new Christians. At the same time life-long scholars marvel at its content. Late in the Gospel, John revealed his purpose for writing, "These are written that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in his name" (20:31). The authors of this commentary have focused on John's intended message for Christians in his day, and by extension, Christians today.
“However, we should recognize that ‘vine’ was frequently used as an analogy for the nation of Israel (e.g., Ps 80:8–19; Isa 5:1–7; Jer 2:21; Hosea 10:1), often an unfavorable analogy. Jesus is pushing his disciples to see that their future does not lie with the national ‘vine’ of Israel, but with the ‘genuine vine’ (himself).” (John 15:1–8)
“he rebuked Antipas and Herodias for marrying since she had been married formerly to Philip” (John 3:24)
“This is the purification of the personal life, a cleansing done by the word of Jesus. Commitment to following the words of Jesus will result in purity of lifestyle.” (John 15:1–8)
“Clement of Alexandria, writing approximately a.d. 185, called John the ‘spiritual Gospel.’” (source)
“Worship without revelation may be spontaneous but it can never be informed or saving.44” (John 4:22)