The answer is: 180

Gen 35:28-29

Isaac's age at death, stated as 180 years in Scripture, places him firmly within the covenant story that unfolds in Genesis. He is a pivotal figure, not only as Abraham's son but also as the father of Jacob and Esau—the foundation of the twelve tribes of Israel. His long lifespan compared to modern averages serves up an interesting point of reflection: ancient peoples attributed longevity not just to genetics but also to favor or purpose from the divine.

The background to Isaac's life is equally fascinating. He endured the high drama of near sacrifice on Mount Moriah—where his father, Abraham, was tested—windowing in a defining moment in their relationship and for what would become the identity of the whole Israelite nation. Isaac's life echoes with complex relationships, much like an intricate tapestry; his interactions with Rebekah, his maintaining family traditions, and navigating the conflicts between his twin sons paint a vivid picture of legacy and continuity in familial strife.

Noteworthy is that Isaac's life represents a transition in the birthing of a covenant community. Each character and circumstance leads us to understand God's faithfulness over generations, a theme that persists throughout the biblical narrative. So as you chew on Isaac's impact, remember he's not just a character displaced in time, but someone who set in motion the vital threads of faith. His story is almost like an ancient family saga that unveils timeless lessons on trust, obedience, and the sometimes messy realities of family ties.