The answer is: Keturah

Gen 25:1

Abraham’s second wife was Keturah, a name that emerges later in the Biblical narrative after he and Sarah had made a significant journey of faith together. Interestingly, Keturah is often overlooked, yet her role is essential in Abraham's lineage. With Keturah, Abraham had six additional children, including Midian—who fathered the Midianites, a people mentioned frequently throughout the Old Testament.

What's even more fascinating is how Keturah's name can be linked with themes of fragrance; in Hebrew, Keturah means “incense.” This connection to fragrance might invoke images of offerings and sacrifices, reminiscent of the ways the ancient Israelites expressed their relationship with God—through smell as much as through substance.

In Genesis 25:1, where Keturah is introduced, we see a focus on the continuation of lineage—a central theme in the biblical narrative. There’s also a notable parallel between her and Sarah, showing that while Sarah symbolizes God's promise, Keturah embodies spontaneity, illustrating the diversity of creation exaggerated through family ties.

Fun fact: The early church largely focused on Abraham's singular covenant with God through Isaac, often neglecting his expansive family tree through Keturah. The exploration of such themes shows how multifaceted lives enriched by vibrant ongoing human experience can be. In the grand tapestry of Biblical history, characters like Keturah remind us that everyone, regardless of fame or recognition, plays a role in the divine story woven through time.