Donate World Mission Sunday Donate Fundraise Every person, parish, school and community in the Catholic world is invited to join this special celebration of prayer and giving! By supporting World Mission Sunday, you are sending a powerful reminder to Catholic communities everywhere that we are one family in Christ, and that they are loved, by God and by us. Every penny, pound and prayer you give to World Mission Sunday helps missionaries everywhere continue their vital work, accompanying, serving and uplifting poor communities around the world through God’s divine love.