What is the significance of Jesus saying 'Peace be unto you' to His disciples?

The repetition of 'Peace be unto you' in John 20:19, 21 serves not merely as a greeting but highlights Jesus' intent to comfort His disciples after their recent fear and abandonment. Given the disciples' anxiety following His crucifixion, His words communicate forgiveness and restoration. This peace is a profound aspect of the Christian faith, indicating reconciliation with God through Jesus' sacrifice. It positioned the disciples to move forward in their ministry, underlining that peace is a central theme that they are to carry forward. Throughout scripture, peace is described as a fruit of the Spirit and is foundational for the believer's walk with God and with each other.