"The fact that the author of 1 and 2 Chronicles devoted nine chapters out of sixty-five to genealogies (1 Chr 1-9) makes clear that these were of great importance to him and bear significantly on his purpose in writing his work. This purpose needs to be understood by any commentator who would elucidate the nature of these volumes.
"We may define a genealogy as a written or oral expression of the descent of a person or persons from an ancestor or ancestors.'18They may display breadth (These were the sons of Israel: Reuben, Simeon, Levi, Judah,' 1 Chr 2:1) and depth (the sons of Solomon: Rehoboam, Abijah his son, Asa his son,' 1 Chr 3:10). This latter genealogy and others of its type that display depth alone are termed linear.' Biblical genealogies, like the extrabiblical ones, are normally quite limited in depth, rarely extending beyond ten or twelve generations but often from four to six. In 1 Chronicles 2-9 we have an exception. Perhaps the writer sometimes joined separate genealogies.
"If a genealogy displays breadth as well as depth, it is termed segmented,' or mixed.' In Chronicles multiple descendants of an ancestor are frequently named, but not all the lives are pursued to later generations. Genealogies may proceed from parent to child (descending, as in 1 Chr 9:39-44) or from child to parent (ascending, as in 1 Chr 9:14-16).
"The two types of genealogy, linear and segmented, serve different purposes. The linear genealogy seeks to legitimize an individual by relating him to an ancestor whose status is established. The segmented genealogy is designed to express relationships between the various branches of a family."19
"Their function, broadly speaking, is to show that the promises and purposes of God continue."20
The aim of the genealogies "is to paint a portrait of the people of God in its ideal extent as a symbol of both the particularity of his election and the breadth of his grace."21
". . . it should be noted that a further theme of Chr., that of the Lord's willingness to start afresh with his errant people, is also tucked away almost unnoticed in the genealogies."22
In all of Chronicles the writer assumed his readers' acquaintance with the other Old Testament historical books. This is especially true regarding what Samuel and Kings contain.
"The reigns of Saul, David and Solomon over a united Israel are central to the concerns of the Chronicler, about half his narrative material being devoted to these three kings alone. Nearly all the many themes of his work are developed here, and it is in their light that the subsequent history of the people is assessed."36
