O eternal Lord God, who by the noble fortitude of missionaries and martyrs hast caused thy Word to grow mightily and to prevail: Pour thy Spirit upon the Church in the land that, by the service and sacrifice of our faith, thy saving health may be known among the nations; through Jesus Christ our Lord. Amen.

Triumph of faith: Christian martyrs in the time of Nero, by Eugène Thirion (1839–1910). From Wikipedia.