Pope John XXIII
Pacem in Terris §169
Pacem in Terris: On Establishing Universal Peace in Truth, Justice, Charity, and Liberty
169 The very order of things therefore, demands that during this sacred season we pray earnestly to Him who by His bitter passion and death washed away men's sins, which are the fountainhead of discord, misery and inequality; to Him who shed His blood to reconcile the human race to the heavenly Father, and bestowed the gifts of peace. "For He is our peace, who hath made both one . . . And coming, He preached peace to you that were afar off; and peace to them that were nigh." (71)
Source: Pacem in Terris (Vatican.va)