Exodus 39:35

the ark of the testimony, and the staves of it, and the mercy-seat,

Exodus 25:17

And thou shall make a mercy-seat of pure gold: two cubits and a half the length of it, and a cubit and a half the breadth of it.

Hebrews 9:5

And above it were cherubim of glory overshadowing the place of forgiveness, about which things it is not now to speak in detail.

Hebrews 9:8

this signifying from the Holy Spirit, the way into the holy things is not yet to be made known while the first tabernacle still remains.

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 thou shall make a mercy-seat of pure gold: two cubits and a half the length of it, and a cubit and a half the breadth of it.
Hebrews 9:5
And above it were cherubim of glory overshadowing the place of forgiveness, about which things it is not now to speak in detail.