Elder Russell M. Nelson of the Quorum of the Twelve Apostles testified of the ultimate source for becoming a peacemaker: “Coming unto Jesus Christ as the ‘Prince of Peace’ [Isaiah 9:6] is the pathway to peace on earth and goodwill among men [see Luke 2:14]” (in Conference Report, Oct. 2002, 41; or Ensign, Nov. 2002, 39).
Elder Bruce R. McConkie (1915–85) of the Quorum of the Twelve Apostles described how to become a peacemaker: “Peacemakers: In the full sense, only those who believe and spread the fulness of the gospel are peacemakers within the perfect meaning of this Beatitude. The gospel is the message of peace to all mankind. Children of God: Those who have been adopted into the family of God as a result of their devotion to the truth. By such a course they become heirs of God and joint-heirs with Christ. (Rom. 8:14–18; Gal. 3:26–29; 4:1–7.)” (Doctrinal New Testament Commentary, 3 vols. [1971–73], 1:216).