What is propitiation?A Scripture-grounded answer about what is propitiation

Propitiation means the turning away of God's wrath through a sacrifice. In the Bible, it describes what Christ's death accomplished — he satisfied God's righteous anger against sin by taking the punishment himself. The Greek word hilasmos appears in 1 John 2:2 and Romans 3:25 and is related to the Old Testament mercy seat where blood was sprinkled on the Day of Atonement. Propitiation differs from expiation (which focuses on removing sin's guilt) because it specifically addresses God's wrath being satisfied.