The genealogy of Jesus

Why Are There Two Genealogies of Jesus?

Matthew and Luke, the Main Honest Explanations

Matthew and Luke both give Jesus a genealogy, and between David and Joseph the two lists differ, which has puzzled and interested readers since the early church. There is no need to hide the question or to pretend to a certainty the text does not give. Several faithful explanations have been offered, and the main ones are strong: that Matthew gives the legal, royal succession through Joseph while Luke gives a different reckoning, possibly Mary's own line or Joseph's natural descent. The differences do not undermine the Gospels; they reflect how ancient genealogies actually worked, and both lists agree on the one thing that matters, that Jesus is the promised son of David.

And Jesus himself began to be about thirty years of age, being (as was supposed) the son of Joseph, which was the son of Heli,Luke 3:23 (KJV)

The question, stated plainly

It is worth naming the difficulty clearly rather than tiptoeing around it. Matthew and Luke both trace Jesus back through King David, and both agree from Abraham to David. But between David and Joseph the two genealogies diverge. Matthew runs the line through David's son Solomon and the kings of Judah. Luke runs it through a different son of David, Nathan, and a different set of names, and it names Joseph's father differently.

And Jesus himself began to be about thirty years of age, being (as was supposed) the son of Joseph, which was the son of Heli,Luke 3:23 (KJV)

Matthew says Jacob begat Joseph. Luke says Joseph was the son of Heli. The number of generations differs too, and most of the names between David and Joseph are not the same. This is a real difference, noticed and discussed by Christians as early as the third century. Honest faith does not need to deny it. It needs to understand it, and there are good, longstanding explanations.

Why we should not be surprised: how ancient genealogies worked

Before weighing the explanations, it helps to set aside a modern assumption. We tend to think of a genealogy as a single, exhaustive biological chart, the kind a government office would keep. Ancient genealogies were not usually like that. They were often selective, purposeful, and could be reckoned in more than one legitimate way.

A person could be listed under a legal father rather than a biological one, especially where adoption or the ancient custom of levirate marriage was involved. Under that custom, recorded in the law of Moses, if a man died childless his brother would marry the widow and raise up children counted to the dead brother's name. So one man could truthfully be called the son of two different fathers, one who gave him life and one whose legal heir he was. Names could also be shortened or skipped. None of this is deception. It is simply how family records were kept in that world. Two genealogies of one person, reckoned differently, were normal, not contradictory.

The first main view: two lines through Joseph, legal and natural

The oldest explanation, going back to the early church, holds that both genealogies belong to Joseph, but reckon his descent in two different ways. On this view Matthew traces the legal, royal succession, the line of the crown, showing who held the legal right to David's throne, while Luke traces Joseph's natural, biological descent.

One classic form of this, proposed in the early centuries and involving a levirate marriage among Joseph's forebears, explains the two different fathers named for Joseph: one man was his natural father and the other the legal father whose heir he was. On this reading both lists are true genealogies of Joseph, one following the throne and one following the blood, and they diverge and rejoin exactly as such double reckonings would. This view has the strength of being the earliest and of taking both lists as Joseph's, which is how both Gospels read on their surface.

The second main view: Luke gives Mary's line

A second widely held explanation, especially common since the Reformation, is that Matthew gives Joseph's line and Luke gives Mary's. On this reading Matthew shows Jesus' legal right to the throne through his adoptive father Joseph, while Luke shows Jesus' actual blood descent from David through his mother Mary.

Supporters point out that Luke frames Joseph's place with the qualifier as was supposed, as if to say the list that follows is not really about Joseph by nature at all. On this view Heli, named in Luke as the father of Joseph, was in fact the father of Mary, and Joseph is listed as his son in the sense of son-in-law, since ancient lists customarily gave the male name. The strength of this view is that it gives Jesus a genuine bloodline from David through Mary, so that he is the son of David not only legally but physically, which several passages of the New Testament seem to affirm.

Holding the views honestly

Both explanations are held by faithful, careful readers, and neither can be proven from the text alone, because neither Matthew nor Luke tells us which method he is using or names Mary in the list. This is exactly the kind of place where honesty is better than overclaiming. We do not know, with certainty, the full mechanics of how the two lists relate.

What we can say with confidence is that the difference is the kind that ancient genealogies routinely contain, that more than one reasonable and longstanding explanation resolves it, and that in every explanation both genealogies affirm the same central truth. Some scholars combine the views, and some hold them loosely. A humble reader can say plainly: here are the main honest explanations, each with real strength, and the presence of a puzzle we cannot fully close is not a threat to faith but a mark of how real and ancient these records are.

What both genealogies agree on

Step back from the differences and look at what the two lists share, because that is where their whole point lies. Both trace Jesus to King David. Both trace him to Abraham. Both present him, against the whole background of Israel's hope, as the promised heir in whom God's covenants come true.

Far from weakening each other, the two genealogies together make a stronger case than either alone. If the early church had wanted to invent a tidy royal pedigree, it would surely have made the two lists match. Instead we have two independent genealogies, differing in just the way genuine ancient records differ, and both landing on the same conclusion. Jesus is the son of David, the son of Abraham, the King and Savior long promised. The puzzle of the two lists, honestly faced, ends not in doubt but in a deeper confidence that these are real records of a real man who is truly the Christ.

There is a quiet lesson here in how to hold the Scriptures. A shallow faith wants every difficulty erased and every question closed, and grows anxious when one remains. A deeper faith can live with an honest open question, knowing that God gave us not a smooth modern pedigree but two genuine ancient genealogies, with all the texture such records carry. The two lists were never meant to be laid side by side and made identical. Each was written by its author for its own purpose, Matthew for the throne and Luke for the whole human race, and together they tell us more about Jesus than a single tidy list ever could. To face the question honestly is not to lose ground but to gain it, for it teaches us to trust the God of these Scriptures rather than our own demand for a certainty he did not choose to give.

A note for all readers: the genealogy of Jesus has been studied lovingly across the whole church for two thousand years. Where there are real questions, such as how Matthew and Luke relate, this page presents the main faithful explanations without claiming a certainty the text does not give. What both genealogies agree on is the heart of the matter: Jesus is the promised Messiah, the son of David and son of Abraham, and the Savior of all humanity from Adam onward.

Continue: The genealogy in Matthew · The genealogy in Luke · Son of David, son of Abraham · The genealogy of Jesus