Credit for Article: Catholic.org

For James there was no indication that this was the day that his life would change. The dawn for him was not the bright beginning of a new day, but the end of long fruitless night of fishing. As James sat mending his nets in the boat with his brother John and his father Zebedee, he must have watched in wonder as his partner Simon brought in nets loaded with fish he had caught at the command of Jesus. Was he shocked when he saw Simon and his brother Andrew walk away from this incredible catch at a word from this same Jesus?
As he watched Jesus walk toward him followed by Simon and Andrew, did he feel curiosity, fear, hope, envy? Jesus didn't pass him by but, stopping by their boat, called James and his brother John to do just what Simon and Andrew had done. Without argument or discussion, James and John left their boat and even their father behind, and followed Jesus.
The first thing James saw after he followed Jesus was his teaching with authority in the synagogue and the cure of Simon's mother-in-law.
We all know that Jesus was the focus of James' life from then on, but it is also evident that James held a special place in Jesus' life.
He was chosen by Jesus to be one of the twelve apostles, given the mission to proclaim the good news, and authority to heal and cast out demons. To be named one of the twelve James must have had faith and commitment.
But even among the apostles he held a special place. When Jesus raised Jairus' daughter when all thought her dead, he only allowed James, John, and Peter to come with him. Even more important when he went up to the mountain to pray, he wanted James, John, and Peter to go with him. And it was there on the mountain they were privileged to witness what no one else had seen -- Jesus transfigured in his glory, speaking to Moses and Elijah, as the voice of God spoke from a cloud.
And with Simon Peter, James and John were the only ones of the apostles that Jesus gave a special name: Sons of Thunder.
To be singled out in these ways, James must have been a close and respected friend of Jesus.
It's no wonder then that James, along with John, felt that he had the right to go to Jesus and ask him to give them whatever they asked. As a mark of his love, Jesus didn't rebuke them but asked them what they wanted. They showed their lack of understanding of his mission when the asked that he let one of them sit on his right and the other on his left when he came into his glory. He replied that they didn't know what they were asking. They didn't see the cross in his future, but an earthly throne. Could they drink of the cup he would drink of? They replied that they could. He assured them they would indeed drink of that cup.
(Matthew has their mother asking for this favor for her sons. Despite the bad reputation their mother got for this, it should be remembered that she too had followed Jesus in his travels, providing for him, and was one of the women who stayed with Jesus as he was crucified when the apostles, including her son James, had fled.)
The other apostles were furious at this request. But Jesus used this opportunity to teach all of them that in order to be great one must be a servant.
James and John did show further lack of understanding of their friend and Lord when he was turned away by Samaritans. They wanted to use their newfound authority as apostles not to heal but to bring fire down on the town. (Perhaps Jesus gave them their Sons of Thunder nickname because of their passion, their own fire, or their temper.) Jesus did reprimand them for their unforgiving, vengeful view of their power.
But despite all these misunderstandings, it was still James, Peter, and John that Jesus chose to join him in prayer at the Garden of Gethsemane for his final prayer before his arrest. It must have hurt Jesus that the three of them fell asleep on this agonizing evening.
James did drink of the cup Jesus drank of, all too shortly after the Resurrection. Acts 12:1 tells us that James was one of the first martyrs of the Church. King Herod Agrippa I killed him with a sword in an early persecution of the Church. There is a story that the man who arrested James became a convert after hearing James speak at his trial and was executed with him.
James is called James the Greater because another younger apostle was named James. He should not be accused with this James, or the James who is a relative of Jesus, or the James who was an elder of the Church in Jerusalem and heard Peter's defense of baptizing Gentiles. James, son of Thunder, was dead by then.
Legends have sprung up that James evangelized Spain before he died but these stories have no basis in historical fact.
James is the patron saint of hatmakers, rheumatoid sufferers, and laborers.