2 Chronicles 6:11

There I have placed the ark [the symbol of His Presence] in which is the covenant of the Lord [the Ten Commandments], which He made with the people (descendants) of Israel.”

2 Chronicles 5:10

There was nothing in the ark except the two tablets [of the Ten Commandments] which Moses put there at Mount Horeb, when the Lord made a covenant with the Israelites, when they came out of Egypt.

2 Chronicles 5:7

Then the priests brought the ark of the covenant of the Lord to its place, to the inner sanctuary of the house, into the Holy of Holies, under the wings of the cherubim;

Exodus 40:20

He took the Testimony [the stones inscribed with the Ten Commandments] and put it into the ark [of the covenant], and placed the poles [through the rings] on the ark, and put the mercy seat on top of the ark.

1 Kings 8:9

There was nothing in the ark except the two tablets of stone which Moses put there at Horeb (Sinai), where the Lord made a covenant with the Israelites when they came out of the land of Egypt.

1 Kings 8:21

There I have made a place [in the Holy of Holies] for the ark, in which is the covenant (solemn agreement) of the Lord, which He made with our fathers when He brought them out of the land of Egypt.”

Hebrews 9:4

having the golden altar of incense and the ark of the covenant covered entirely with gold. This contained a golden jar which held the manna, and the rod of Aaron that sprouted, and the [two stone] tablets of the covenant [inscribed with the Ten Commandments];

Treasury of Scripture Knowledge

Summary

And in it have I put the ark, wherein is the covenant of the LORD, that he made with the children of Israel.

Bible References

I put the ark

2 Chronicles 5:7
Then the priests brought the ark of the covenant of the Lord to its place, to the inner sanctuary of the house, into the Holy of Holies, under the wings of the cherubim;
Exodus 40:20
He took the Testimony [the stones inscribed with the Ten Commandments] and put it into the ark [of the covenant], and placed the poles [through the rings] on the ark, and put the mercy seat on top of the ark.
1 Kings 8:9
There was nothing in the ark except the two tablets of stone which Moses put there at Horeb (Sinai), where the Lord made a covenant with the Israelites when they came out of the land of Egypt.
Hebrews 9:4
having the golden altar of incense and the ark of the covenant covered entirely with gold. This contained a golden jar which held the manna, and the rod of Aaron that sprouted, and the [two stone] tablets of the covenant [inscribed with the Ten Commandments];