Exodus 39:35

The ark of the testimony and its bars, and the cover;

Exodus 25:17

And make a cover of pure gold: two cubits and a half its length, and a cubit and a half its breadth;

Hebrews 9:5

And above it the cherubs of glory overshadowing the propitiatory; of which it is not now to speak in turn.

Hebrews 9:8

This the Holy Spirit designating, the way of the holies had not yet been made manifest, the first tent yet having a standing:

Treasury of Scripture Knowledge

Summary

The ark of the testimony, and the staves thereof, and the mercy seat,

The mercy seat

Bible References

The mercy seat

Exodus 25:17
And make a cover of pure gold: two cubits and a half its length, and a cubit and a half its breadth;
Hebrews 9:5
And above it the cherubs of glory overshadowing the propitiatory; of which it is not now to speak in turn.