The answer is: Sarai

Genesis 11:29 - Abram married Sarai, who was his half-sister. Their story exemplifies faith and obedience to God’s promises, particularly in Genesis 12, where God calls Abram to leave his homeland. Interestingly, Sarai’s name was later changed to Sarah, meaning "princess," reflecting her destined role as the matriarch of nations.

The story of Abram and Sarai is like the original script of a reality show called "The Journey of Faith." Can you imagine receiving a cosmic call to set out into the unknown? It brings a fresh perspective to what faith entails when Abram, hearing from God, packs up and leaves everything familiar without a map in hand—just trust in every step.

Sarai, later named Sarah, has a unique part in this drama. Apart from the name change symbolizing her elevated status, it showcases that she was chosen for a vital role. Her name means "prince" (though she ends up with the more majestic "princess"), signaling that she wasn’t just walking along for the ride; she had her own destiny! Fun fact: Both Abram and Sarai are linked to a covenant that promises a posterity as numerous as the stars.

Imagine the tension and thrill as they embark on this ride. The pair occasionally falters, which makes them relatable. At one moment, they try to shortcut God's promise out of stress and doubt, leading to some questionable decisions regarding Hagar, who bears Abram's first son, Ishmael.

There’s also fascinating trivia about their lives, such as how Abram's family ties stretch across generations directly linked to many tribes in the Middle East. Their journey doesn’t merely shape their lives but leaves an imprint on the landscape of history, future civilizations, and, interesting tied, the evolution of spiritual lines. Their neighborhood exploits resonate far overheard today!