John 1:40
"One of the two which heard John speak, and followed him, was Andrew, Simon Peter’s brother."
Cross References (ranked by relevance)
Matthew 10:2
Now the names of the twelve apostles are these; The first, Simon, who is called Peter, and Andrew his brother; James the son of Zebedee, and John his brother;
John 6:8
One of his disciples, Andrew, Simon Peter’s brother, saith unto him,
Acts 1:13
And when they were come in, they went up into an upper room, where abode both Peter, and James, and John, and Andrew, Philip, and Thomas, Bartholomew, and Matthew, James the son of Alphaeus, and Simon Zelotes, and Judas the brother of James.