Romans 3:25 “whom God displayed publicly as a propitiation in His blood through faith. This was to demonstrate His righteousness, because in the forbearance of God He passed over the sins previously committed”.
The Greek word hilasterion is the Greek rendering of the Hebrew kapporeth which refers to the Mercy Seat of the Ark. Hilasterion can be translated as either “propitiation” or “expiation” which then imply different functions of the Mercy Seat. The English dictionary definition of “propitiation” literally means to make favorable and specifically includes the idea of dealing with God’s wrath against sinners. Expiation literally means to make pious and implies either the removal or cleansing of sin.
The idea of propitiation includes that of expiation as its means, but the word “expiation” has no reference to quenching God’s righteous anger. The difference is that linguistically the object of expiation is sin, not God (that is, sin is removed, not God). Linguistically, one propitiates a person (makes them favorable), and one expiates a problem (removes it). Christ’s death was therefore both an expiation and a propitiation. By expiating (removing the problem of) sin God was made propitious (favorable) to us.
Praise God! In and through Christ I have favor with God, you have favor with God through faith. He has not only dealt with my present sins and future sins but my past sins with His blood. I’m clean, “There is a fountain filled with blood drawn from Emmanuel’s veins; … The dying thief rejoiced to see that fountain in his day; and there may I, though vile as he, wash all my sins away. …”.
You have favor with God through Christ Jesus, rejoice!