Simon Peter and Andrew, brothers, are fishermen
Matthew 4:18 And Jesus, walking by the sea of Galilee, saw two brethren, Simon called Peter, and Andrew his brother, casting a net into the sea: for they were fishers.
Mark 1:16 Now as he walked by the sea of Galilee, he saw Simon and Andrew his brother casting a net into the sea: for they were fishers.
Decided to follow the Lord after hearing John the Baptist:
John 1:40 One of the two which heard John speak, and followed him, was Andrew, Simon Peter’s brother.
Andrew and Simon Peter live in Bethsaida:
John 1:44 Now Philip was of Bethsaida, the city of Andrew and Peter.
Named as one of the 12 apostles:
Matthew 10:3 Philip, and Bartholomew; Thomas, and Matthew the publican; James the son of Alphaeus, and Lebbaeus, whose surname was Thaddaeus;
Mark 3:18 And Andrew, and Philip, and Bartholomew, and Matthew, and Thomas, and James the son of Alphaeus, and Thaddaeus, and Simon the Canaanite,
Luke 6:14 Simon, (whom he also named Peter,) and Andrew his brother, James and John, Philip and Bartholomew,
They go into Peter’s House
Mark 1:29 And forthwith, when they were come out of the synagogue, they entered into the house of Simon and Andrew, with James and John.
Named as one of the twelve:
Mark 3:18 And Andrew, and Philip, and Bartholomew, and Matthew, and Thomas, and James the son of Alphaeus, and Thaddaeus, and Simon the Canaanite,
Questions the Lord about the future
Mark 13:3 And as he sat upon the mount of Olives over against the temple, Peter and James and John and Andrew asked him privately,
Feeding of the large crowd:
John 6:8 One of his disciples, Andrew, Simon Peter’s brother, saith unto him,
What to do about the Greeks:
John 12:22 Philip cometh and telleth Andrew: and again Andrew and Philip tell Jesus.
Last mentioned after the ascension of the Lord, in the upper room:
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.