Catholicism
Catholics venerate saints, especially the Virgin Mary (Mother of God). "Venerating saints" means that Catholics give special honor to saints (people in heaven) because they believe that saints can pray for them directly to God. Many Protestants do not, because they regard "venerating saints" as "worshiping saints". Because they believe that only God should be worshiped, they do not venerate. Many Protestants also simply do not believe that any veneration is necessary.