Charles Ellicott Commentary Luke 6:14-16

"Simon, whom he also named Peter, and Andrew his brother, and James and John, and Philip and Bartholomew, and Matthew and Thomas, and James [the son] of Alphaeus, and Simon who was called the Zealot, and Judas [the son] of James, and Judas Iscariot, who became a traitor;" — Luke 6:14-16 (ASV)

Simon, (whom he also named Peter). — For the list of the Twelve Apostles, see Notes on Matthew 10:2.

The only special points in St. Luke’s list are (1) that he gives Simon Zelotes, obviously as a translation, for Simon the Cananite, or Cananæan, of the other two lists, and gives James’s Judas, leaving it uncertain whether he means that the latter was son or brother of the former. His use of the same formula in the genealogy of Luke 3 is in favour of the former relationship.