Hebrews 9:4

In it is the gold incense-altar, and the Ark containing the Covenant, completely covered with gold. In the Ark is a gold casket containing the manna, Aaron's rod that budded, and the tablets on which the Covenant was written;

Revelation 15:8

'The Temple was filled with smoke from the Glory' and Majesty of God; and no one could enter the Temple, until the seven Curses inflicted by the seven angels were at an end.

Treasury of Scripture Knowledge

Summary

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.

In the ark

Bible References

In the ark

Hebrews 9:4
In it is the gold incense-altar, and the Ark containing the Covenant, completely covered with gold. In the Ark is a gold casket containing the manna, Aaron's rod that budded, and the tablets on which the Covenant was written;