The answer is: Two cherubim

Exo 25:18

The Ark of the Covenant, a central symbol in the Hebrew Bible, was an impressive structure made of acacia wood and detailed with gold. But it wasn't simply a flashy piece of craftsmanship—no, it served as a heavenly symbol on Earth! Atop this sacred chest sat two cherubim, with wings outstretched. These angelic figures weren't just designed for aesthetics; they were a representation of God’s presence among His people.

In Exodus 25:18 specifically mentions that the cherubim overshadowed the mercy seat—the cover of the Ark—indicative of a closely knit relationship between divine authority and human acknowledgment via sacrifices made for atonement. Interestingly, the artisans who crafted the Ark are famed characters, Bezalel and Oholiab, and they not only built this intricate piece but also infused their work with divine artistry.

Now, hear this: throughout the Bible, cherubim show up in diverse contexts! Back in the Garden of Eden, a cherub named “the fiery sword” was stationed to guard its entrance after humanity faltered. And in later texts, see how myths and tales from cultures around Israel mirrored these angels' prominence, showcasing the interplay of faith and then-contemporary beliefs.

So when you ponder the cherubim atop the Ark, it's not merely artistic flair, but a rich tapestry of faith, connection, and dialogue with the divine!