This verse lists the descendants of Abraham's concubine, Keturah, who bore him children after the death of his wife Sarah. The genealogy highlights the continuation of Abraham's lineage through his sons, emphasizing the fulfillment of God's promise to make him the father of many nations. Despite not being the child of promise, Keturah's offspring are acknowledged as part of Abraham's family, illustrating God's faithfulness in multiplying his descendants as He had foretold.