John 1:40

One of the two. The writer identifies but one of the two. It is generally believed that the other was the writer himself, John the brother of James, who modestly refrains from identifying himself (see on v. 35; cf. eh. 21:20-24; DA 138).

Followed him. John and Andrew desired to converse with Jesus concerning the declaration of v. 36, “Behold the Lamb of God!” They were not yet thinking of following Him in the formal sense of becoming regular followers (see on v. 43). It was now probably the late autumn or early winter of A.D. 27 (see The Chronology of Luke 3:1, 2). They followed Jesus intermittently for the next year and a half before He issued the call to permanent discipleship (see on Luke 5:11). Jesus’ formal appointment of the Twelve did not take place till the late summer of A.D. 29 (see on Mark 3:13-19). The five who “followed” Jesus at the Jordan did so simply in the sense of accepting John’s witness to His Messiahship.

Andrew. See on Mark 3:18.

Simon Peter’s. See on Mark 3:16.