He came from God full of grace and truth
John’s gospel is unique among the four gospels. Catholic scholar Raymond E. Brown referred to it as the gospel with the highest “christology.” You can find within it concepts–such as that of Living Water or the Holy Spirit–that are not addressed at all in the other gospels or only minimally addressed.
John 18-20 (Revised Standard Version)
The Betrayal and Arrest of Jesus
18 When Jesus had spoken these words, he went forth with his disciples across the Kidron valley, where there was a garden, which he and his disciples entered. 2 Now Judas, who betrayed him, also knew the place; for Jesus often met there with his disciples. 3 So Judas, procuring a band of soldiers and some officers from the chief priests and the Pharisees, went there with lanterns and torches and weapons. 4 Then Jesus, knowing all that was to befall him, came forward and said to them, “Whom do you seek?” 5 They answered him, “Jesus of Nazareth.” Jesus said to them, “I am he.”