In Matthew 4:18-22, Jesus begins to call His disciples, specifically the pairs of brothers, Peter and Andrew, and James and John, demonstrating that following Him is neither easy nor risk-free. Its sacrifices and hardships are often severe, requiring a commitment that most are unwilling to make, as true discipleship demands absolute devotion and dedication to Christ Himself. Jesus tests these men to uncover their true willingness to commit to Him, His way of life, and His purposes, emphasizing that one fit for God's Kingdom must be willing to give all. Luke records three instances where individuals offer excuses to refuse Christ's calling, highlighting general areas of failure. First, the Christian life is one of discomfort, as Jesus tells a man He has no place to lay His head, underscoring that Christians, as strangers and sojourners, cannot expect worldly comforts and must not let possessions or lifestyles hinder their devotion to Christ. Second, the Christian life is sacrificial, shown when Jesus denies a man's request to bury his father, insisting instead on preaching the Kingdom of God, indicating that God's will must take precedence over customary duties and worldly ties. Third, the Christian life demands new loyalties, as Jesus warns a man wishing to bid farewell to family and friends that once committed to God's way, there is no turning back, requiring a devotion to Him that surpasses even blood ties. This new loyalty necessitates an act of will to prioritize God above all, enabling one to live the life of Christ.

Jesus begins His ministry and calls the first disciples. Simon and Andrew immediately leave their nets and follow Him. James and John leave their father with the hired hands in the boat. The disciples respond to the call unhesitatingly. They are eager and willing. They offer no excuses and no resistance. Their enthusiasm for Christ is commendable. Jesus says to Simon and Andrew that He will make them become fishers of men. The verb become is ginomai in Greek. It implies preparation. Jesus is going to prepare them for the job that He has for them. The gospel of Mark illustrates how Jesus forms and fashions them to do the work that He has in mind for them. Levi responds immediately to Christ. Jesus calls sinners to repentance. He picks out His disciples individually. He goes up on the mountain and calls to them those He Himself wants. When He calls them they come to Him. He considers each one by one. He chooses some and rejects the many. This vignette illustrates that Jesus is putting together an entirely new family. It is not connected by blood ties. It is unified by a shared obedience of God's will. The one who does what His Father wants him to do is Jesus' brother. This new family is unified by common righteous actions. Faith and obedience to the will of God bring inclusion and acceptance. Right after that comes the parable of the sower. The disciples hear the same thing that the multitudes do. They misunderstand just like the multitudes do. They do not perceive. Jesus teaches His parables to them as they are able to hear them. He brings them along bit by bit. He expounds on these things as they are able to keep up. He gives them greater detail in private sessions that He does not give to the multitude. He applies the same kind of care to new converts as they grow. If they do not quite get something they know that Jesus in time will give them understanding.

The calling of the first disciples serves as the foundational illustration for understanding discipleship, opening with Matthew 4:18-22, where Jesus walks along the Sea of Galilee and calls Peter, Andrew, James, and John. The narrative shows Jesus simply saying, "Follow Me," and the men immediately leaving their nets, their boat, and even their father to follow Him. This immediacy might suggest they gave no thought to the decision, yet John 1 reveals they had prior interactions with Christ and already knew His teachings and identity as the Messiah before this formal call came. Still, despite their prior knowledge, they could not have fully grasped the cost of what they were undertaking—three of the four would die as martyrs, while John endured persecution, watched the church disintegrate, and lived to see many depart from the faith. This calling becomes a template for reflecting on one's own conversion. Just as the disciples counted the cost imperfectly, believers today cannot foresee the full scope of what God's calling entails—the privations, sacrifices, controversies, and emotional trials that lie ahead. This limited understanding is presented as a mercy: had God fully revealed in advance everything a converted life would require, many would likely refuse. God therefore brings people along gradually, testing them to reveal their character and commitment under duress, though the timing and nature of trials vary greatly from person to person. The calling of these four disciples sets up a broader examination of what discipleship actually requires, transitioning into Luke 9:46-62, which outlines four ways one can fail as a disciple: self-exaltation, exclusivity, resorting to persecution, and succumbing to distraction. Each of these failures reveals a misunderstanding of what it means to be "called" in the first place. A disciple, by definition, is a student and a follower, not a leader seeking status—directly contradicting the ambition displayed by James and John when they sought positions of honor. The call to follow Christ demands recognizing His singular position as Master, meaning those who are called must place themselves under Him and under one another rather than seeking self-promotion. The three distraction scenarios in Luke 9:57-62 further illuminate the nature of being called: one man offers to follow "wherever" Jesus goes without understanding the privations involved, paralleling the original disciples' incomplete grasp of their commitment. Two others let competing priorities—family obligations and social farewells—intrude upon an immediate response to Christ's invitation, "Follow Me." Jesus's response, "Let the dead bury their own dead, but you go and preach the kingdom of God," reveals that those who are called must place their response to the Master above even legitimate human responsibilities. Ultimately, John 15:16 and 15:8 tie the entire discussion back to God's initiative in the calling: "You did not choose Me, but I chose You and appointed You that You should go and bear fruit." The call to discipleship is not something disciples initiate but something Christ extends, expecting wholehearted, undistracted response, and the entire discussion of what constitutes bad discipleship exists to illuminate what a proper response to that original calling should look like.