Question: "What is the relevance of the genealogies in the Bible?"
Answer: The Bible contains multiple genealogical records. Many of us either skim these sections or skip them altogether, finding them largely irrelevant and perhaps even boring. However, they are part of Scripture, and, since all Scripture is God-breathed (2 Timothy 3:16), they must bear some significance. There must be something we can learn from these lists.
First, the genealogies help substantiate the Bibleís historical accuracy. These lists confirm the physical existence of the characters in the Bible. By knowing family histories, we understand that the Bible is far from a mere story or a parable for how we should live our lives. It is authentic, historical truth. An actual man named Adam had actual descendants (and, therefore, his actual sin has actual consequences).
The genealogies also confirm prophecy. The Messiah was prophesied to come from the line of David (Isaiah 11:1). By recording His lineage in Scripture, God confirms that Jesus was descended from David (see Matthew 1:1-17 and Luke 3:23-38). The genealogy is yet another attestation of Jesus Christís fulfillment of the Old Testament prophecies.
The lists also demonstrate the detail-oriented nature of God and His interest in individuals. God did not see Israel vaguely, as a nebulous group of people; He saw with specificity, with precision and detail. There is nothing detached about the genealogies. They show a God involved. The inspired Word mentions people by name. Real people, with real histories and real futures. God cares about each person and the details of his or her life (Matthew 10:27-31; Psalm 139).
Finally, we can learn from various people listed in the genealogies. Some of the lists contain narrative portions that give us glimpses into the lives of the people. For instance, the prayer of Jabez is found within a genealogy (1 Chronicles 4:9-10). From this, we learn about Godís character and the nature of prayer. Other genealogies reveal that Ruth and Rahab are in the Messianic line (Ruth 4:21-22; Matthew 1:5). We see that God values the lives of these individuals, even though they were Gentiles and not part of His covenant people.
While genealogies may at first glance appear irrelevant, they hold an important place in Scripture. Genealogies bolster the historicity of Scripture, confirm prophecy, and provide insight into the character of God and the lives of His people.