The answer is: Two cherubim

Exo 25:18

The top of the Ark of the Covenant was adorned with two cherubim, which are heavenly beings often connected with the presence of God and His divine protection. These cherubim faced each other and formed a kind of throne area, inviting spiritual contemplation about the majesty of the divine. The Ark itself was a key symbol within ancient Israelite culture, crafted from acacia wood and overlaid with pure gold—a powerful detail that once again emphasizes the idea of purity and holiness.

Interestingly, the cherubim and the Ark have fascinating echoes throughout the Bible. For instance, in Genesis, cherubim are mentioned as guardians of the Garden of Eden, wielding flaming swords to protect the way to the Tree of Life. That’s quite symbolic, considering the Ark represents a bridge back to a divine presence, much like the guarded tree once sought by humanity.

Additionally, the spy's report of "grapes from clusters too massive to carry" symbolizes abundance and the divine promise awaiting the Israelites, much like the Ark symbolizes God's intimate and guiding presence during their Exodus journey.

So, when we think about the cherubim atop the Ark, we’re looking at more than just decorations; they communicate a deeper story across the biblical narrative about protection, divine judgement, and the dream of unity and access to the divine essence. Fun fact: The Ark’s journey across the wilderness is also a prophetic echo of seeking one's purpose and understanding in a wandering life!