1 Kings 8:9
“There was nothing in the ark save the two tables of stone, which Moses put there at Horeb, when the Lord made a covenant with the children of Israel, when they came out of the land of Egypt.”
For the cherubims spread forth their two wings over the place of the ark, and the cherubims covered the ark and the staves thereof above.
And they drew out the staves, that the ends of the staves were seen out in the holy place before the oracle, and they were not seen without: and there they are unto this day.
There was nothing in the ark save the two tables of stone, which Moses put there at Horeb, when the Lord made a covenant with the children of Israel, when they came out of the land of Egypt.
And it came to pass, when the priests were come out of the holy place, that the cloud filled the house of the Lord,
So that the priests could not stand to minister because of the cloud: for the glory of the Lord had filled the house of the Lord.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And thou shalt put the mercy seat above upon the ark; and in the ark thou shalt put the testimony that I shall give thee.”
“Which had the golden censer, and the ark of the covenant overlaid round about with gold, wherein was the golden pot that had manna, and Aaron’s rod that budded, and the tables of the covenant;”
“And he took and put the testimony into the ark, and set the staves on the ark, and put the mercy seat above upon the ark:”
“And thou shalt put into the ark the testimony which I shall give thee.”
“And he took the book of the covenant, and read in the audience of the people: and they said, All that the Lord hath said will we do, and be obedient.”