The Roman Missal: Proper of Saints, March and April (English) 18

1[April 5. St Vincent Ferrer, Confessor.—Double.]
2[Mass.—Os Justi, for a Confessor, page xxxv, except—]
3Prayer. Deus qui Ecclesiam. O God, who didst vouchsafe to illustrate thy Church by the merits and preaching of blessed Vincent, thy confessor, grant to us thy servants, that we may be both instructed by his example, and delivered from all adversity by his patronage. Through our Lord, &c.