Synoptic-Gospels
Short answer: The Synoptic Gospels are Matthew, Mark, and Luke, the three Gospel accounts that share a common outline and often the same wording, in contrast to John. Luke explains his own method in Luke 1:1-4: many had already drawn up narratives from what eyewitnesses handed down, and he too investigated everything carefully from the beginning and wrote an orderly account so that Theophilus might know the certainty of the things he had been taught. That does not make the Gospels less than Scripture. 2 Timothy 3:16-17 says, "Every Scripture is God-breathed and profitable for teaching, for reproof, for correction, and for instruction in righteousness," and John 20:30-31 shows that each Gospel selected from a larger body of material. The word synoptic means seeing together: these three can be placed side by side and read in parallel.
Why three Gospels look so much alike
Read Matthew, Mark, and Luke side by side and the resemblance is impossible to miss. The same episodes tend to appear in the same sequence: baptism, temptation, Galilean ministry, confession at Caesarea Philippi, journey to Jerusalem, passion, resurrection. Frequently the wording is nearly identical, sometimes for long stretches. Yet the three are not copies of one another. Each has material the others lack, and each arranges and applies the shared material in its own way.
This combination of agreement and difference is what gave the three the name synoptic, from a Greek expression meaning to see together. The similarities make a harmony possible; the differences make the harmonies differ from one another. Anyone who has tried to line up the three accounts in parallel has felt both the closeness and the friction.
Christians have never been embarrassed by this. The church received four Gospels, not one, and the early centuries treated the four as complementary witnesses rather than competitors. The differences are the ordinary differences between honest accounts told by different people for different readers. What Luke claims is not that he produced the only account, but that his was careful, ordered, and reliable.
Luke 1:1-4 and the making of a Gospel
Luke opens with a sentence that many have undertaken to set in order a narrative concerning those matters which have been fulfilled among us. He places his own book inside a wider stream of Gospel writing. He does not present himself as the first or the only writer, and he does not criticize the others. He simply says that this work had already begun, and that he is joining it.
He then names his sources as those who from the beginning were eyewitnesses and servants of the word. Luke was not, so far as we know, an eyewitness of the ministry of Jesus. He came to the story from outside. What he had access to was the testimony of people who were there, and the traditions that had been handed down from them.
His own contribution is described with a phrase often rendered as having traced the course of all things accurately from the first. The picture is of investigation, of following a matter through, not of invention. Luke is telling his reader: I looked into this carefully, from the beginning, and what follows is the result.
Theophilus and the purpose of an ordered account
Luke's stated aim is that you might know the certainty concerning the things in which you were instructed. Theophilus had already been taught. Luke is not introducing a stranger to the faith; he is confirming someone who has heard the message and needs to know it stands. An orderly account serves that purpose: it lets a reader follow the whole course of events rather than a jumble of detached sayings.
Notice what kind of certainty Luke offers. He does not promise an unmediated experience or a private revelation. He offers a written account built on testimony, and he names the reader by name. Certainty, in Luke's understanding, comes through the reliable transmission of what actually happened. That is a very ordinary and very confidence-inspiring thing to claim.
This also explains why order matters to him. If the point were only to preserve sayings, order would be optional. But Luke wants the reader to see the shape of the story, because the meaning of the events lies partly in their sequence. The one who was baptized, who taught, who was crucified, and who rose is one continuous story, not a collection of moral fragments.
What Mark shows about the earliest preaching
Mark 1:14-15 says, "Now after John was taken into custody, Jesus came into Galilee, preaching the Good News of God's Kingdom," and continues with the call to repent and believe. Much of Mark reads like the apostolic preaching put into narrative form, beginning near the start of Jesus' public ministry and moving steadily toward the cross. Mark is short, direct, and fast-moving.
Mark's brevity is instructive. It shows that a Gospel did not need to be exhaustive to be faithful. The earliest memory of Jesus was not a data dump but a message with a shape: this is what happened, this is what it means, this is what you must do. Yet Mark is not careless. His compactness is a deliberate choice, and it helps explain why Matthew and Luke could both use material of this kind while adding what they had received.
The relationship between Mark and the other two is one of the most discussed questions in Gospel studies. Most modern scholars hold that Matthew and Luke both used Mark, along with another shared source for material Mark lacks. Many conservative scholars accept something like this; others prefer different explanations such as direct dependence on Matthew or on shared oral tradition. Faithful Christians differ here, and no essential doctrine hangs on the answer.
Matthew's Gospel and the Old Testament
Matthew 13:1-9 opens with Jesus going out of the house and sitting by the seaside, then telling the parable of the sower. The whole scene, a teacher seated by the water with a crowd pressing in, is characteristic of Matthew's portrait of Jesus as the authoritative teacher of Israel. Matthew is the most Jewish of the Synoptic Gospels, full of citations and echoes of the Hebrew Scriptures.
Again and again Matthew frames an event with a formula like this took place to fulfill what was spoken through the prophet. His readers are meant to hear the story of Jesus as the continuation and completion of the story of Israel, not as a departure from it. He also groups Jesus' teaching into large blocks, such as the Sermon on the Mount, so that the reader can take it in as a body of instruction.
This does not make Matthew less historical than the others. It makes him pastoral, writing for a particular community with particular questions. The same events are selected and arranged to answer those questions. That is exactly what Luke describes: a narrative set in order for the benefit of a specific readership.
Luke's Gospel and the outsider
Luke, more than the other two, is interested in the people on the edges: the poor, women, Samaritans, tax collectors, and outsiders. He is also the most explicit about his historical method, as Luke 1:1-4 shows. The combination is telling. A careful investigator chose to include material others passed over.
This is one reason the Synoptic Gospels cannot be treated as interchangeable. Each has a perspective, and the perspective is part of what the Spirit used. The differences are not noise to be eliminated by harmonization; they are the shape of the witness. A reader who flattens Luke into Matthew loses what Luke was moved to emphasize.
At the same time, the fourfold Gospel was received as a unity by the church. The differences never became a reason to choose one account over another. They were read as complementary, and the reading that takes all four seriously is the historic Christian reading.
Why the Synoptic problem should not unsettle you
Scholars use the phrase Synoptic problem for the question of how the three Gospels relate. Proposed answers include Markan priority, the existence of a hypothetical sayings source, and various forms of oral tradition. The debate is real and ongoing, and it is not a sign that the Gospels are unreliable.
Consider what the alternatives actually are. If Matthew and Luke used Mark, they did what Luke 1:1-4 already describes: they drew on existing narratives and eyewitness testimony and set them in order. If they did not, the similarities still require some explanation, and shared testimony is the most natural one. In no case does the evidence point to invention of core events.
The point of contention is literary relationship, not whether Jesus lived, taught, died, and rose. Christians who accept one solution and Christians who accept another can affirm together that these are the church's Scriptures, given by God and profitable for the purpose Paul names in 2 Timothy 3:16-17.
The Gospels as trustworthy witnesses
John 20:30-31 says, "Therefore Jesus did many other signs in the presence of his disciples, which are not written in this book;" and then states the purpose: that readers may believe and have life. Every Gospel is a selection. None claims to record everything. The existence of more material than any one book contains is stated plainly, not concealed.
Selection is not the same as distortion. A witness in court tells what he saw, choosing what is relevant to the question. The Gospel writers chose what would serve their readers' faith. Luke's word for his own work is accurate, and he grounds it in eyewitness testimony rather than in speculation.
So the right question is not why the Gospels differ, but whether their differences undermine trust. They do not. They are the marks of multiple, independent, honest reports, gathered and ordered by writers who had reasons for what they included. That is what Luke 1:1-4 describes, and it is a stronger foundation for faith than a single uniform account would be.
Biblical fidelity check
Luke 1:1-4 establishes that the Gospel was written by careful investigation of eyewitness testimony, that it was set in order, and that its purpose was the certainty of the reader. It does not establish that Luke interviewed every apostle personally, that he had access to written records we still possess, or that his chronology is exhaustive. It also does not tell us how Matthew and Luke relate to Mark; it tells us what kind of thing a Gospel is.
A common misreading treats Luke's preface as if he were reporting a media investigation that replaces faith with proof, or conversely as if the word orderly meant that the other Gospels are unorderly and therefore inferior. Neither fits the text. Luke commends the other narratives he mentions. The certainty he offers is the certainty of trustworthy testimony about fulfilled events, not mathematical demonstration, and it stands alongside the church's reception of all four Gospels as God-breathed Scripture.
Other passages that speak to Luke 1:1-4
The themes Luke raises, testimony, certainty, sin, confession, and the love of the world, echo through the letters of John. For a study of how the apostolic witness to what was from the beginning grounds Christian assurance, see What Does 1 John 1:1 Mean? Context, Theology, and Application. On the honesty required when we claim fellowship with God, compare What Does 1 John 1:8 Mean? Context, Theology, and Application. The path from confession to forgiveness is treated in 1 John 1:9 Meaning: Confession, Forgiveness, and Cleansing, and the warning against love of the world in What Does 1 John 2:15 Mean? Context, Theology, and Application.
Frequently asked questions
What are the Synoptic Gospels?
The Synoptic Gospels are Matthew, Mark, and Luke. They are called synoptic, from a Greek expression meaning to see together, because they share a common outline and often very similar wording, so they can be set side by side in parallel columns. John is not counted among them because his Gospel follows a different structure and includes much material the other three do not. The four together are the church's canonical Gospels.
Did Luke write his Gospel by investigating sources?
Yes, according to Luke 1:1-4. Luke says he himself traced the course of all things accurately from the first and that his material came from those who from the beginning were eyewitnesses and servants of the word. He also acknowledges that many others had already set in order a narrative. His Gospel is therefore a researched account grounded in testimony, written so that Theophilus could know the certainty of what he had been taught.
Does the Synoptic problem contradict the inspiration of Scripture?
No. The Synoptic problem concerns how the three Gospels relate to one another as literature, not whether they are truthful or God-given. Luke himself describes using prior narratives and eyewitness tradition, and this is what 2 Timothy 3:16-17 means by God-breathed Scripture: God worked through the writers' careful, ordinary labor. Christians hold differing views on the exact relationship among the three and still affirm the full authority and trustworthiness of all of them together.
