“There I will meet with you, and I will tell you from above the mercy seat, from between the two cherubim which are on the ark of the covenant, all that I command you for the children of Israel.” - Exodus 25:22
The Ark of the Covenant was located in the Tabernacle, which was God's sanctuary. The Tabernacle was a portable sanctuary that the tribes of Israel encamped around as they journeyed through the wilderness. The Ark of the Covenant was placed behind the veil in the Holy of Holies, a small room that contained nothing except the Ark of the Covenant. God also appeared above the Ark and between the Cherubim when he spoke to Moses.