The answer is: Two cherubim

Exo 25:18

The Ark of the Covenant, that incredibly significant and portable chest from the story of the Exodus, is often seen not just as a physical object but as a dynamic symbol of God's presence among the people. Topping it were two ornately crafted cherubim facing one another, their wings stretched upward to form a sort of throne for God's presence, or what the scripture calls the "mercy seat."

Cherubim in biblical terms are fascinating creatures – they’re not just winged angels! Their first mention connects them to the garden of Eden, where they guarded the way to the tree of life (Genesis 3:24). But by the time of the Exodus, cherubim take on a different role, closely linked with divine judgment and protection.

Another unique tidbit is that the Ark itself was not just a ceremonial object; it was seen as the focal point of worship. Wherever the Israelites roamed, the Ark led the way, symbolizing God's guidance and his covenant with the people. It was also a source of disaster for enemies, who feared it because they understood it to represent divine presence.

This divine structure indeed emphasizes the deep relationship between Israel's history and their faith. The Ark floated through rivers, the wilderness, and became a vital scene for major events like the fall of Jericho, conveying the messages of hope, guidance, and an ever-looming reminder of divine promise. So, it wasn't just about cherubim; it reflected an entire journey of belief.