ANSWER: John is the only Gospel that documents Jesus’ conversation with
                   Nicodemus, who like all of mankind must be born again.
 
Note: the term “born again” is a “metaphor of salvation” (The Lutheran Study Bible, p. 1782) and refers to spiritual rebirth.
 
Note: (a.) Matthew 5:1-8:1 comprises many teachings, such as The Beatitudes and The Lord’s Prayer, and is known as the Sermon on the Mount. Luke 6:20-49 contains a short version of this sermon (often called The Sermon on the Plain). (b.) In Mark 6:45-52 Jesus walks on water (Mt 14:24-27 and Jn 6:16-21 also list this event). (c.) Only Luke 10:29-37 records the Parable of the Good Samaritan.
 
Note: in the Bible, only Jesus and Peter uses the term “born again” (1Pe 1:3, 1:23).