Jacob begat Judah and his brethren While Matthew passes by in silence Ishmael, Abraham's first-born, and Esau, who was Jacob's elder brother, he properly assigns a place in the genealogy to the Twelve Patriarchs, on all of whom God had bestowed a similar favor of adoption. He therefore intimates, that the blessing promised in Christ does not refer to the tribe of Judah alone, but belongs equally to all the children of Jacob, whom God gathered into his Church, while Ishmael and Esau were treated as strangers. [1]

Footnotes

1 - "Quum essent extranei." -- "En lieu qu'Ismael et Esau en avoyent este rejettez et bannis comme estrangers." -- "Whereas Ishmael and Esau were thrown out and banished from it as strangers."

These verses contain the genealogy of Jesus. Luke also Luke 3 gives a genealogy of the Messiah. No two passages of Scripture have caused more difficulty than these, and various attempts have been made to explain them. There are two sources of difficulty in these catalogues.
1. Many names that are found in the Old Testament are here omitted; and,
2. The tables of Matthew and Luke appear in many points to be different.
From Adam to Abraham Matthew has mentioned no names, and Luke only has given the record. From Abraham to David the two tables are alike. Of course there is no difficulty in reconciling these two parts of the tables. The difficulty lies in that part of the genealogy from David to Christ. There they are entirely different. They are manifestly different lines. Not only are the names different, but Luke has mentioned, in this part of the genealogy, no less than 42 names, while Matthew has recorded only 27 names.
Various ways have been proposed to explain this difficulty, but it must be admitted that none of them is perfectly satisfactory. It does not comport with the design of these notes to enter minutely into an explanation of the perplexities of these passages. All that can be done is to suggest the various ways in which attempts have been made to explain them.
1. It is remarked that in nothing are mistakes more likely to occur than in such tables. From the similarity of names, and the different names by which the same person is often called, and from many other causes, errors would be more likely to creep into genealogical tables than in other writings. Some of the difficulties may have possibly occurred from this cause.
2. Most interpreters have supposed that Matthew gives the genealogy of Joseph, and Luke that of Mary. They were both descended from David, but in different lines. This solution derives some plausibility from the fact that the promise was made to David, and as Jesus was not the son of Joseph, it was important to show that Mary was also descended from him. But though this solution is plausible, and may be true, yet it wants evidence. It cannot, however, be proved that this was not the design of Luke.
3. It has been said also that Joseph was the legal son and heir of Heli, though the real son of Jacob, and that thus the two lines terminated in him. This was the explanation suggested by most of the Christian fathers, and on the whole is the most satisfactory. It was a law of the Jews that if a man died without children, his brother should marry his widow. Thus the two lines might have been intermingled, According to this solution, which was first proposed by Africanus, Matthan, descended from Solomon, married Estha, of whom was born Jacob. After Matthan's death, Matthat being of the same tribe, but of another family, married his widow, and of this marriage Heli was born. Jacob and Heli were therefore children of the same mother. Heli dying without children, his brother Jacob married his widow, and begat Joseph, who was thus the legal son of Heli. This is agreeable to the account in the two evangelists. Matthew says that Jacob begat Joseph; Luke says that Joseph was the son of Heli, i. e., was his legal heir, or was reckoned in law to be his son. This can be seen by the plan on the next page, showing the nature of the connection.
Though these solutions may not seem to be entirely satisfactory, yet there are two additional considerations which should set the matter at rest, and lead to the conclusion that the narratives are not really inconsistent.
1. No difficulty was ever found, or alleged, in regard to them, by any of the early enemies of Christianity. There is no evidence that they ever adduced them as containing a contradiction. Many of those enemies were acute, learned, and able; and they show by their writings that they were not indisposed to detect all the errors that could possibly be found in the sacred narrative. Now it is to be remembered that the Jews were fully competent to show that these tables were incorrect, if they were really so; and it is clear that they were fully disposed, if possible, to do it. The fact, therefore, that it is not done, is clear evidence that they thought it to be correct. The same may be said of the acute pagans who wrote against Christianity. None of them have called in question the correctness of these tables. This is full proof that, in a time when it was easy to understand these tables, they were believed to be correct.
2. The evangelists are not responsible for the correctness of these tables. They are responsible only for what was their real and professed object to do. What was that object? It was to prove to the satisfaction of the Jews that Jesus was descended from David, and therefore that there was no argument from his ancestry that he was not the promised Messiah. Now to make this out, it was not necessary, nor would it have conduced to their argument, to have formed a new table of genealogy. All that could be done was to go to the family records - to the public tables, and copy them as they were actually kept, and show that, according to the records of the nation, Jesus was descended from David. This, among the Jews, would be full and decided testimony in the case. And this was doubtless done. In the same way, the records of a family among us, as they are kept by the family, are proof in courts of justice now of the birth, names, etc., of individuals. Nor is it necessary or proper for a court to call them in question or to attempt to correct them. So, the tables here are good evidence to the only point that the writers wished to establish: that is, to show to the Jews that Jesus of Nazareth was descended from David. The only inquiry which can now be fairly made is whether they copied those tables correctly. It is clear that no man can prove that they did not so copy them, and therefore that no one can adduce them as an argument against the correctness of the New Testament.

Abraham begat Isaac - In this genealogy, those persons only, among the ancestors of Christ, which formed the direct line, as specified: hence no mention is made of Ishmael, the son of Abraham, nor of Esau, the son of Isaac; and of all the twelve patriarchs, or sons of Jacob, Judah alone is mentioned.

Abraham begat Isaac,.... The descent of Christ from Abraham is in the line of Isaac; Abraham begat Ishmael before Isaac, and others after him, but they are not mentioned; because the Messiah was not to spring from any of them, but from Isaac, of whom it is said, "in Isaac shall thy seed be called", Genesis 21:12 and who, as he was a progenitor, so an eminent type of Christ; being Abraham's only beloved son; and particularly in the binding, sacrifice and deliverance of him.
Isaac begat Jacob. The genealogy of Christ proceeds from Isaac, in the line of Jacob. Isaac begat Esau, as well as Jacob, and they two were twins, but one was loved, and the other hated; wherefore no mention is made of Esau, he had no concern in the Messiah, nor was he to spring from him, but from Jacob, or Israel, by whose name he is sometimes called, Isaiah 49:3
Jacob begat Judas and his brethren. The lineage of Christ is carried on from Jacob in the line of Judah; the reason of which is, because it was particularly prophesied that the Messiah, Shiloh, the prince and chief ruler, should be of him, Genesis 49:10 1-Chronicles 5:2. And it is evident beyond all contradiction, that our Lord sprung from his tribe, Hebrews 7:14. The reason why the brethren of Judah, who were eleven in number, are mentioned, when the brethren of Isaac and Jacob are not, is, because though the Messiah did not spring from them, yet the promise of him was made to the twelve tribes, who all expected him, and to whom he was sent, and came. These made but one body of men, and therefore, though the Messiah came from the tribe of Judah, yet he is said to be of them all, Romans 9:4.

Abraham begat Isaac; and Isaac begat Jacob; and Jacob begat Judas and his brethren--Only the fourth son of Jacob is here named, as it was from his loins that Messiah was to spring (Genesis 49:10).

Abraham begat Isaac. Matthew begins with Abraham to trace the line down. He was writing for Jews, and Jewish history begins with Abraham. Luke (Luke 3:23-38), writing for Gentiles, goes back to Adam. For the differences between Matthew and Luke, see Matthew 1:16.