44 May the attempts with which the enemies secretly banded together seek to pull down the Scepter of Christ be a spur to us to work in union for the establishment and advancement of His reign. No greater fortune can come to individuals, families, and nations than to obey the Author of human salvation, execute His commands, accept His reign, in which we are made free and rich in good works: ". . . a kingdom of truth and of life; a kingdom of holiness and of grace; a kingdom of justice, love and peace" ( Preface of the Mass of Christ the King ).
Source: Sertum Laetitiae (Vatican.va)