Grace is a reference to God’s undeserved love that has been lavished on believers and peace refers to the reconciliation (peace) that Christians have with God (and fellow believers) on account of Christ.1 The peace enjoyed by believers is fulfilment of covenant promise of peace seen in Ezekiel (Ezekiel 37:26; cf. Psalm 72:7; Isaiah 54:10) and it comes through preaching of gospel (Isaiah 52:7).2
3 Grace to you and peace from God our Father and the Lord Jesus Christ,