O God, who gave increase to your Church through the zeal for religion and apostolic labors of Blessed William Joseph Chaminade, grant, through his intercession, that she may always receive new growth in faith and in holiness. Through our Lord Jesus Christ, your Son, who lives and reigns with you in the unity of the Holy Spirit, one God, for ever and ever. Amen.
(from The Roman Missal: Common of Pastors—For Missionaries)