Exodus 25: 8 and 9 says, "And let them make Me a sanctuary, that I may dwell among them. According to all that I show you, that is, the pattern of the tabernacle and the pattern of all its furnishings, just so you shall make it."

Ark of the Covenant is in the most important piece of the furniture – it is in the holy of Holies.

In Old Testament, there are well over 185 references, and so it is not a small matter.   We need to pay attention to it.