Jesus took physical punishment upon His body so that we can choose to walk in peace every day. Peace is something that we need to practice and prepare for. We do this by speaking the Word of God. We are steadied and kept secure by the knowledge that we have in the Word of God.

and having strapped on your feet the gospel of peace in preparation [to face the enemy with firm-footed stability and the readiness produced by the good news]. Ephesians 6:15 (AMP)