2 Chronicles 5:10
There was nothing in the ark save the two tables which Moses put therein at Horeb, when the Lord made a covenant with the children of Israel, when they came out of Egypt.
Cross-reference
In 2 Chronicles 6:11, Solomon mentions placing the ark with the covenant, directly echoing the content of 5:10.
In Exodus 31:18, God gives Moses the two stone tablets written by His finger — the same tables later in the ark.
In Exodus 32:15, Moses holds the two tablets as he descends Sinai — origin of the tablets placed in the ark.
In Exodus 32:16, the tablets are described as God's own work and writing, emphasizing their divine origin.
In Exodus 32:19, Moses breaks the tablets — showing the ones in the ark are a second set.
In Exodus 34:1, God commands new tablets after the first were broken — the ones that end up in the ark.
In Exodus 40:20, Moses places the testimony into the ark, directly matching the placement described in 5:10.
Deuteronomy 10:2-5 recounts Moses placing the tablets in the ark, the same event described here.
Deuteronomy 29:1 explicitly names the covenant at Horeb, the same covenant referenced here.
Jeremiah 31:31-34 promises a new covenant unlike the one made at Horeb, contrasting with the old covenant tablets here.
Hebrews 8:6-13 quotes Jeremiah and declares the old covenant obsolete, contrasting with the tablets' significance here.
Hebrews 9:4 adds manna and Aaron's rod inside the ark, contradicting this verse's claim that only the tablets were there.
1 Kings 8:9 gives the same account of only the tablets being in the ark, paralleling this verse exactly.