John was a spiritual leader whose sole mission was to point out Jesus, but those who saw in him the mission of God took up with him. This is why John had disciples (v. 35; cf. 3:25–26). As the previous day, John proclaimed Jesus aloud for all to hear (1:36; cf. v. 29), and two of his disciples began following Jesus. What’s of note is that John doesn’t follow Jesus but continues his ministry. Some have argued that Jesus was a disciple of John because he was known in relation to John (cf. Mark 6.14–15; 8:27–28), but John didn’t see it that way (John 3:30).
One of the disciples that left John to follow Jesus was Andrew, Peter’s brother. The gospel’s author is believed to have been the second, so Andrew and John left the Baptizer to follow Jesus. Andrew goes to Peter and brings him to Jesus. When Simon Peter sees Jesus, he receives a new name—Cephas. Both Cephas and Peter are names meaning “rock.” There’s a lot of significance to this. Jesus said whoever hears his words and does them is like one who builds their house on the rock (Matt. 7:24). Later, Peter is contrasted with the rock upon which the church is built (Matt. 16:18).
The next day, Jesus calls Philip. Disciples then opted to attach themselves to a rabbi, so Jesus calling disciples was not expected (cf. 15:16). Bethsaida means “place of fishing,” and it’s where Andrew and Peter were also from. This city is one of the most frequently mentioned cities—Jerusalem and Capernaum being more so. A blind man was healed here (Mark 8:22–25), and the feeding of the four thousand occurred in a deserted place nearby too. Yet, the city was cursed because they did not accept Jesus despite the miracles performed there (Matt. 11:21).
Nathanael isn’t mentioned in any of the other gospel accounts, so it’s been presumed that his name was Bartholomew—the name being a surname (Bar-Tholomais, or son of Tholomaiso)—who’s often linked with Philip (Matt. 10:3; Mark 3:18; Luke 6:14). By the first century, Jewish rabbis had puzzled together Scriptures about an anticipated Messiah. He was one of whom Moses spoke (Deut. 18;15, 18) and the prophets predicted (Is. 9:1–7; 11:1–5, 10–12). Nathanael was himself from Cana in Galilee, so it seems odd that he would look down on Nazareth. However, many others questioned Christ coming from Galilee (John 7:41, 52).
Jesus’ address to Nathanael is ironic. Jacob, whose name was later changed to Israel, was a deceiver. Yet, Nathanael, unlike the original Israel, was not deceitful. Jesus’ knowledge of Nathanael points to him being a prophet, which accounts for his response. Jesus promises greater things to come and identifies himself with Jacob’s ladder (v. 51; cf. Gen. 28:12). As the angels ascended and descended on Jacob’s ladder, an indication of divine revelation, so Jesus’ disciples would receive further revelation. It’s often tempting to think “Son of Man” references that Jesus was born of a woman and thus represents his humanity. However, the title is taken from Daniel 7:13 and is a divine title.