“And thou shalt make a Mercieseat of pure gold: two cubites and a halfe shalbe the length thereof, and a cubite and a halfe the breadth thereof.”
1611 King James Version (KJV)
25:17 The mercy - seat was the covering of the ark, made exactly to fit the dimensions of it. This propitiatory covering, as it might well be translated, was a type of Christ the great propitiation, whose satisfaction covers our transgressions, and comes between us and the curse we deserve.