The Call of the First Disciples

Today's Scripture

Mark 1:16-18 — "Passing alongside the Sea of Galilee, he saw Simon and Andrew the brother of Simon casting a net into the sea, for they were fishermen. And Jesus said to them, 'Follow me, and I will make you become fishers of men.' And immediately they left their nets and followed him."

Mark 2:14 — "And as he passed by, he saw Levi the son of Alphaeus sitting at the tax booth, and he said to him, 'Follow me.' And he rose and followed him."

The Big Idea

When Jesus calls the first disciples, there is no sermon, no explanation, no question-and-answer session. There is a command — "Follow me" — and there is a man standing up. Bonhoeffer's point is simple and unsettling: faith in Jesus and obedience to Jesus are not two stages. They arrive together, in the act of following.

Reflection

Two words and a standing man

Look closely at the Levi story, because Mark tells it with almost shocking brevity. Jesus walks past a tax booth. He says two words. A man stands up, leaves his cash box, and walks into a new life. Mark 2:14 — "'Follow me.' And he rose and followed him."

Mark gives us no inner monologue. He does not say Levi had been secretly dissatisfied, or that he had heard Jesus preach and was already half-convinced. There is no psychology in the story at all — and Bonhoeffer insists that the silence is the point:

"The response of the disciples is an act of obedience, not a confession of faith in Jesus." — Dietrich Bonhoeffer, The Cost of Discipleship

Notice what Levi does not do. He does not recite a creed. He does not explain his theology. His entire statement of faith is made with his legs. Luke's version adds one detail: Luke 5:27-28 — "And leaving everything, he rose and followed him." For a tax collector, "everything" meant a lucrative booth he could never get back. Fishermen could return to fishing; a tax franchise, once abandoned, was gone. Levi burned his livelihood with two words still ringing in the air.

The same scene repeats by the lake. Mark 1:19-20 — "he saw James the son of Zebedee and John his brother, who were in their boat mending the nets. And immediately he called them, and they left their father Zebedee in the boat with the hired servants and followed him." Nets half-mended. A father still holding the rope. Mark's favorite word in these stories is immediately. The call of Jesus does not sit in an inbox.

Compare that with how we make decisions. We read reviews before buying a toaster. We keep three group chats running for a week before choosing a restaurant. We are trained to treat commitment as the last step of a long research project. And then Jesus walks past a tax booth and expects a man to stand up mid-shift.

Notice, too, how concrete the call is. Jesus does not invite Levi to adopt a new philosophy of life or to feel warmly about God. He names the next physical step: stand up, leave the booth, walk this direction. Bonhoeffer loved this about the Gospel stories. The call never floats in the air as a beautiful idea; it always lands on something specific — these nets, this boat, this booth, today. If your sense of following Jesus never touches anything as solid as a net or a cash box, it may not yet be following.

Why could two words do that?

Be honest: if a stranger walked past your school or office and said "Follow me," you would not go. So why did they?

Bonhoeffer answers: because of who was calling.

"Jesus summons men to follow him not as a teacher or a pattern of the good life, but as the Christ, the Son of God." — Dietrich Bonhoeffer, The Cost of Discipleship

A teacher attracts students with arguments. A celebrity attracts fans with charm. But the Son of God calls the way God calls — with words that carry their own power. This is the same voice that said "Let there be light," and there was light. When that voice says "Follow me," the command itself creates the ability to obey it, the way "Lazarus, come out" created life in a dead man. The disciples did not work up the strength to follow. The call carried them.

This was not new. God had done it before, to a man named Abram. Genesis 12:1 — "Go from your country and your kindred and your father's house to the land that I will show you." Notice what is missing: the destination. God names everything Abram must leave and tells him almost nothing about where he is going. Hebrews 11:8 looks back at that moment: "By faith Abraham obeyed when he was called to go out to a place that he was to receive as an inheritance. And he went out, not knowing where he was going."

He obeyed, not knowing. That is the family resemblance of everyone God has ever called. You get a Person to follow, not a map to study. Jesus says it is still how his voice works today: John 10:27 — "My sheep hear my voice, and I know them, and they follow me." Hearing and following, in one breath.

Bonhoeffer's famous circle

This brings us to one of the most quoted sentences in the whole book:

"Only he who believes is obedient, and only he who is obedient believes." — Dietrich Bonhoeffer, The Cost of Discipleship

That sounds like a riddle. It is really two warnings, one for each half of our hearts.

The first half — only he who believes is obedient — guards against obedience without faith. You can grit your teeth and keep rules for years without trusting Jesus at all. That is not discipleship; it is performance.

The second half — only he who is obedient believes — guards against faith without obedience. This was the half Bonhoeffer's generation needed, and probably ours too. We like to say, "I believe in Jesus; I'm just not ready to change anything." Bonhoeffer answers: a "faith" that never moves your feet is not weak faith. It is no faith. You cannot trust a doctor whose prescription you refuse to fill. Martin Luther — the hero of the very Reformation Bonhoeffer feared had been misused as an excuse — described what real faith feels like from the inside:

"Faith is a living, daring confidence in God's grace, so sure and certain that the believer would stake his life on it a thousand times." — Martin Luther, Preface to the Epistle to the Romans

Living. Daring. Staking your life. Charles Spurgeon, the great London preacher, tied the knot even tighter:

"Faith and obedience are bound up in the same bundle. He that obeys God, trusts God; and he that trusts God, obeys God." — Charles Spurgeon

Think of a child at the edge of a swimming pool, with her father in the water saying, "Jump — I'll catch you." How does she show that she trusts him? Not by announcing from the edge, "I have full confidence in your catching ability." There is only one way to believe her father at that moment, and it involves leaving the concrete. The jump is the faith. Standing on the edge admiring him is not.

And here is the strange mercy in it: understanding usually comes after the jump, not before. Peter did not know Jesus was the Son of God when he dropped his nets; he confessed that years later, after storms and miracles and failures. Oswald Chambers, a Scottish teacher from the generation just before Bonhoeffer, explained why:

"All God's revelations are sealed until they are opened to us by obedience. You will never get them open by philosophy or thinking." — Oswald Chambers, My Utmost for His Highest

Some things about Jesus can only be learned on the road, walking behind him. Wait until you understand everything, and you will understand nothing.

The call is grace

By now you might picture this call as a heavy demand dropped on unsuspecting fishermen. Bonhoeffer wants you to see the opposite. The call is the gift.

"Discipleship is not an offer man makes to Christ." — Dietrich Bonhoeffer, The Cost of Discipleship

Nobody in the Gospels hires Jesus as a life coach. Nobody submits an application. In that culture, students chose their rabbis — but Jesus reverses it every time: John 1:43 — "The next day Jesus decided to go to Galilee. He found Philip and said to him, 'Follow me.'" Jesus decides. Jesus finds. Jesus calls. Levi was not searching for God at his tax booth; he was counting coins. Grace walked up to him in person and interrupted his shift.

And think about whom grace chose to interrupt. Tax collectors were despised as traitors who collected money for the occupying empire and skimmed extra for themselves. Levi was the man whose name made neighbors spit. Yet Jesus stopped at his booth, in public, on purpose. Luke tells us the first thing the new disciple did was throw a great feast at his house, packing the room with his old tax-collector friends so they could meet the one who had called him. People who are merely recruited do not throw parties. People who have been rescued do.

And what a person grace turned out to be. Bonhoeffer insists that discipleship is not devotion to a set of ideas about Jesus but attachment to Jesus himself — and that the two cannot be swapped:

"Christianity without the living Christ is inevitably Christianity without discipleship, and Christianity without discipleship is always Christianity without Christ." — Dietrich Bonhoeffer, The Cost of Discipleship

You can admire Christian values, vote for Christian causes, and even defend Christian doctrines without ever once standing up from your booth. That, Bonhoeffer says, is Christianity without Christ — a body with no heartbeat.

But look at where the call ultimately leads, and you see the gospel underneath it. The Caller practiced everything he commanded. The disciples left their nets; he had already left heaven. Levi left a tax booth; the Son of God left the glory he had with the Father, was found in our neighborhood, and walked our roads looking for us. He called Levi to a new life at the cost of a cash box — and supplied that life at the cost of his own. "Follow me" comes from lips that would soon say, "Father, forgive them."

So the call of Jesus is not a recruitment poster for the spiritually elite. It is a hand extended to fishermen, tax collectors, and you — from the One who already paid everything to be able to extend it. The only question Levi's story leaves us is the one it leaves every reader: he is passing by, and he is saying it to you. Will you stand up?

Going Deeper

Today, practice obeying at the speed of Levi in one small thing. The next time God's Spirit nudges you toward something you already know is right — apologize to that person, silence the gossip, give the money, send the encouraging text — do it within five minutes, before the committee in your head convenes. Then notice what happens to your sense of Jesus's realness when you obey first and analyze later. That noticing is the lesson.