Barrett: Propitiation or Expiation in Romans 3:25-26?

“‘Propitiation’ is not [entirely] adequate, for this means that the offender does something to appease the person he has offended, whereas Paul says that God himself put forward Christ. Propitiation is truly there, however, for, through the sacrifice of Christ, God’s wrath is turned away; but behind the propitiation lies the fact that God actually wiped out (expiated) our sin, and made us right with himself.”

-C.K. Barrett, Reading through Romans, 16.