St Paul considers that ‘the mystery of the Lord Jesus Christ’ lies in the opening of the door of faith to the whole world, and allowing all nations access to salvation. While the entire epistle proclaims the nature of salvation, here St. Paul presents practical applications which are in harmony with all the other parts of his message. He stresses the obligations of the Church as a whole as well as the role of each member of the Church. All should demonstrate a loving heart that yearns to bring all to salvation.