The answer is: Father of height

Genesis 17:5 - Abram, later renamed Abraham, meaning "father of many nations," underscores God's promise to him. The transition from Abram to Abraham marks the fulfilment of divine plans and highlights themes of faith and covenant found throughout Scripture, further emphasized in Romans 4:16-17.

The name Abram, meaning "father of height," reflects a little more than just an interesting title—it symbolizes both aspirations and God's larger plans for him. Just like a towering tree that provides shelter and nourishment, Abram was envisioned to be both significant and impactful in the lineage that would follow. His name change to Abraham, meaning "father of many nations," officially thrust him into his pivotal role in spiritual history as the forefather of not just many individuals, but an entire collection of cultures and belief systems, as demonstrated through Isaac's lineage and later the Islamic tradition through Ishmael.

It's intriguing to notice how this transformational moment melds trust with destiny. God often reshapes identities in the Bible—think of Jacob becoming Israel and Simon becoming Peter—each rebranding marking a vital turning point filled with potential.

Also, Romans 4 resonates hotly as it champions faith, asserting that it's against all odds that Abram chose to believe in a God who brought promises that seemed astronomically grand. People sometimes forget that blessings wrapped in faith aren’t just for the exceptional but for anyone who journeys along the same road, paving their paths with trust.

And let’s not skip the cultural impact! Abraham’s story has unfurled countless discussions on themes of hope, perseverance, and spiritual family connections guiding the world’s understanding of living by faith, touching multiple generations across various nations. Now that’s a legacy!