Cross reference
Exodus 25:21
21 `And thou hast put the mercy-seat on the ark above, and unto the ark thou dost put the testimony which I give unto thee;
Exodus 26:34
34 `And thou hast put the mercy-seat on the ark of the testimony, in the holy of holies.
Exodus 25:16-17
16 and thou hast put unto the ark the testimony which I give unto thee.
17 `And thou hast made a mercy-seat of pure gold, two cubits and a half its length, and a cubit and a half its breadth;
Romans 10:4
4 For Christ is an end of law for righteousness to every one who is believing,