The answer is: Sarai

Genesis 17:15 - God changed Sarai's name to Sarah when He reaffirmed His covenant with Abraham, signifying her new role as the mother of nations.

Sarai's transformation into Sarah symbolizes more than just a name change; it's an emblematic shift in purpose and destiny. Isn’t it fascinating how the Bible highlights the significance of names so often? Names in ancient cultures weren’t just labels; they encapsulated character, destiny, and divine purpose.

The name "Sarai" means "my princess," while "Sarah" translates to “daughter of a great one” or “noblewoman.” It’s almost as if God adjusted not only her title but her place in a larger story—a narrative that ultimately would shape the future of countless nations. Reflecting on the extraordinary maternal legacy she bears, Sarah is acknowledged as one of the pivotal matriarchs of Judaism, Christianity, and Islam—a testament to how transcendent her life would become.

One fun trivia nugget: sticking to the theme of divine altercations, Jacob is another character who shares a name swap when he becomes Israel after wrestling with a divine being. Both stories echo a transformation that signifies God's engagement with humanity.

Sarah’s life presents immense lessons on faith, resilience, and patience. Ripe with symbolic implications, the name change is not just a simple Hebrew twist; it's an invitation to reflect on how our identities can evolve in profound and meaningful ways—especially when we align our actions with a higher purpose. So, her journey becomes not only historic but deeply relatable, reminding us of our potential social and spiritual growth!