The Roman Missal: Proper of Saints, July (English) 12

1[July 15. Translation of St Swithin, Bishop and Confessor.—Double.]
2[Mass.—Sacerdotes tui, for a Bishop and Confessor, page XXIX. except—]
3Prayer. Omnipotens. O Almighty, everlasting God, who hast made this day honourable to us by the festival of blessed Swithin, thy confessor and bishop, grant joy to thy church in this celebration, that we may be supported by his intercession in heaven, whose solemnity we venerate upon earth. Through our Lord, &c.
4Secret. Regard thy people, we beseech thee, O Lord, who hasten to thy mysteries on this festival of blessed Swithin, thy confessor and bishop; and grant that by his intercession what they have offered in honour of thy name may profit them all to forgiveness. Through our Lord, &c.
5Postcom. Pignus vitæ. Receiving, O Lord, the pledge of eternal life, we humbly pray that, by the intercession of blessed Swithin, thy confessor and bishop, we may receive, by manifest participation, what we have received under the sacramental veils. Through our Lord, &c.