How do we know the doctrine of propitiation is true?

The concept of propitiation, as discussed in 1 John 2:2, is foundational to understanding Christ's role in our salvation. It signifies that Jesus is the expiation for our sins, serving as an advocate with the Father. This means that His sacrificial death appeases the wrath of God against our sin, covering us and ensuring that we are regarded as righteous. The Scripture illustrates that just as the pitch covered Noah's Ark, preventing judgment from falling on those inside, Christ's blood covers and protects believers from divine wrath. Without His atoning sacrifice, there is no reconciliation with God, which firmly establishes the truth of this doctrine.