For Perseverance
Look upon us and hear us, O Lord our God; and assist those endeavours to please Thee which Thou Thyself hast granted to us; as Thou hast given the first act of will, so give the completion of the work; grant that we may be able to finish what Thou hast granted us to wish to begin; through Jesus Christ our Lord. Amen.
—Mozarabic Liturgy