20 Men who in every nation pray to the same God for peace on earth will not kindle flames of discord among the peoples; men who turn in prayer to the divine Majesty, will not set up in their own country a craving for domination; nor foster that inordinate love of country which of its own nation makes its own god; men who look to the "God of peace and of love" (II Cor. xiii. 11), who turn to Him through the mediation of Christ, who is "our peace" ( Eph . ii. 14), will never rest until finally that peace which the world cannot give, comes down from the Giver of every good gift on "men of good will" ( Luc . ii. 14).
Source: Caritate Christi Compulsi (Vatican.va)