The theme of John's gospel is that his readers would believe. The perspective of time and age lends wisdom to his writing as he conveys what's most important of his recollection of Jesus' ministry.

John the Baptist.

John the Baptist was the first prophet to speak God's word for hundreds of years. This providential delay in revelation heightened anticipation among the Jews for the coming Messiah. John the Baptist broke the silence with a powerful, influential, successful voice, because God determined it to be so. He preached a message of repentance and led a simple life.

Biographical Sketch of John the Baptist.

John’s account of the life of John the Baptist, the cousin of Jesus. John the Baptist is mentioned in all 4 Gospels (Matt 5, Mark 1, Luke 3). Apostle John gives one more aspect as he reports on John the Baptist, fitting with his purpose to show that “Jesus is the Christ, the Son of God; and that by believing you may have life in His name” (John 20:31).