One of the two who heard John, and followed him, was Andrew, Simon Peter's brother.

 (viii) There is the witness of the Holy Spirit. "When the Counsellor comes ... even the Spirit of truth ... he will bear witness to me" ( John 15:26). In the First Epistle John writes: "And the Spirit is the witness, because the Spirit is the truth" ( 1 John 5:7). To the Jew the Spirit had two functions. The Spirit brought God's truth to men, and the Spirit enabled men to recognize that truth when they saw it. It is the work of the Spirit within our hearts which enables us to recognize Jesus for what he is and to trust him for what he can do. 