James was among the first of the twelve disciples. When Jesus called the brothers, James and John were fishermen with their father Zebedee on the Sea of Galilee. They immediately left their father and their business to follow the young rabbi. James was probably the older of the two brothers because he is always mentioned first.Three times James, John, and Peter were invited by Jesus to witness events no one else saw: the raising of the daughter of Jairus from the dead (Mark 5:37-47), the transfiguration (Matthew 17:1-3), and Jesus' agony in the Garden of Gethsemane (Matthew 26:36-37).But James was not above making mistakes. When a Samaritan village rejected Jesus, he and John wanted to call down fire from heaven upon the place. This earned them the nickname "Boanerges," or "sons of thunder." The mother of James and John also overstepped her bounds, asking Jesus to grant her sons special positions in his kingdom.James' zeal for Jesus resulted in his being the first of the twelve apostles to be martyred. He was killed with the sword on order of King Herod Agrippa I of Judea, about 44 A.D., in a general persecution of the early church.
Quoted from Wikipedia [2]:
Catholics and Eastern Orthodox Christians teach that James, along with others named in the New Testament as "brothers" of Jesus, were not the biological children of Mary, mother of Jesus, but were possibly cousins of Jesus, or step-brothers from a previous marriage of Joseph (as related in the Gospel of James).The Catholic tradition holds that this James is to be identified with James, son of Alphaeus, and James the Less. It is agreed by most that he should not be confused with James, son of Zebedee also known as James the Great.
[1] https://www.learnreligions.com/profile-of-apostle-james-701062, quoted without hyperlinks.
[2] https://en.wikipedia.org/wiki/James,_brother_of_Jesus, quoted without references and hyperlinks.