This verse lists the descendants of Shem, one of Noah's sons, tracing the genealogy from Shem to Abraham. It serves as a historical record of the lineage leading to the patriarchs of Israel, highlighting the continuity of God's plan through generations. By documenting these names, the verse emphasizes the importance of ancestry and heritage in the context of God's covenant with His people. It also sets the stage for the unfolding of God's redemptive work through the nation of Israel, ultimately culminating in the birth of Jesus Christ.