εἰρήνη — eirene
An invocation of peace: peace.
We need be at enmity with God no more. This salvation is freely available to all. Where once we lived in bitter opposition to God (even if we thought we were passive about the whole thing), we can be enemies no more.
When we repent and believe, we lay down our weapons of war and find peace and forgiveness. We are not enemies anymore, we’re not even defectors: we become sons. We aren’t just forgiven, by his sacrifice Christ made it possible to be adopted into the very family of God.
This is just another undeserved mercy, grace upon grace!