The answer is: God

Gen 7:16

In the rich narrative of Genesis, it’s intriguing to note the role of divine intervention in the closing of Noah's Ark. God Himself seals the door, emphasizing His authority and the finality of the new era about to unfold. The image of the door closing isn't just a practical ending; it’s dramatically symbolic, showing the finality of judgment for a corrupt world.

Did you realize that traditional Jewish thought portrays Noah as a kind of preacher, warning those around him? For 120 years, he was building the Ark while reportedly telling people about the impending flood. However, they all chose to ignore his warnings—quite the reflection of how people often overlook earnest truth.

Fun fact: the precise dimensions of the Ark as described in the Bible are staggering, leading calculated scholars to estimate that it was about the size of an ancient cargo ship—huge by any standard! This colossal vessel showcased not just Noah’s obedience but also God’s provision for preservation and new beginnings.

This story echoes throughout various cultures in different forms, underlining humanity's deep-rooted consciousness about divine judgment and salvation. Archaeological findings and depictions suggest that many civilizations have their narratives similar to Noah's flood, reinforcing themes akin to catastrophe leading to renewal and regeneration. This gives us much to ponder concerning themes of mercy, hope, and redemption that echo from generation to generation in human experiences.