This section goes through Joseph's great-grandfather Eleazar, grandfather Matthan, and father Jacob. None of these figures are mentioned anywhere other than in Matthew and nothing else is known about them. As with most of the later section of Matthew's genealogy it conflicts with that given in Luke 3. There is some similarity in this passage Matthew gives Joseph's grandfather as Matthan and Luke as Matthat, the other names, however, are wholly different. Eleazar was a common Old Testament name, appearing many times in that work.[1]
Robert H. Gundry, who is highly skeptical of the earlier parts of Matthew's genealogy, believes that these later figures are likely accurate as it is unlikely no one would know who Joseph's father and grandfather were. Even if the author of Matthew did not known their names it is unlikely he would risk being creative as he could be fairly sure that somebody would spot his error. Gundry posits that Eleazar is the last fictional creation and that Matthan and Jacob were real people.[2]