This verse lists the descendants of Shem, one of Noah's sons, tracing his genealogy through various generations. It serves as a historical record of the lineage of Shem's descendants, highlighting the importance of genealogies in the Old Testament. The detailed account showcases the continuity of God's plan throughout history, leading ultimately to the fulfillment of His promises. By documenting these family lines, the verse emphasizes the significance of ancestry and heritage in the context of God's covenant relationship with His people.