Prayer to Obtain Confidence in the Merits of Jesus Christ and in the Intercession of Mary

Eternal Father, I thank Thee for myself, and on behalf of all mankind, for the great mercy that Thou hast shown us, in sending Thy Son to be made man, and to die to obtain our salvation; I thank Thee for it, and I should wish to offer Thee in thanksgiving all that love which is due for such an inestimable benefit. By His merits our sins are pardoned, and Thy justice is satisfied for the punishment we had merited; by these merits Thou dost receive us miserable sinners into Thy grace, while we deserve nothing but hatred and chastisement: Thou dost receive men to reign in Paradise. Finally, Thou hast bound Thyself, in consideration of these merits, to grant all gifts and graces to those who ask for them in the name of Jesus Christ.
I thank Thee also, O Infinite Goodness, that, in order to strengthen our confidence, besides giving us Jesus Christ as our Redeemer, Thou hast also given us Thy beloved daughter Mary as our advocate; so that, with that heart full of mercy which Thou hast given her, she may never cease to succor by her intercession any sinner who may have recourse to her; and this intercession is so powerful with Thee that Thou canst not deny her any grace which she asks of Thee.
Hence it is Thy will that we should have a great confidence in the merits of Jesus, and in the intercession of Mary. But this confidence is Thy gift, and it is a great gift which Thou dost grant to those only who ask Thee for it. This confidence, then, in the Blood of Jesus Christ, and in the patronage of Mary, I beg of Thee, through the merits of Jesus and Mary. To Thee, also, my dear Redeemer, do I turn; it was to obtain for me this confidence in Thy merits that Thou didst sacrifice Thy life on the Cross for me, who was worthy only of punishment. Accomplish, then, the end for which Thou hast died; enable me to hope for all things, through confidence in Thy Passion. And thou, O Mary, my mother, and my hope after Jesus, obtain for me a firm confidence, first in the merits of Jesus thy Son, and then in the intercession of thy prayers, prayers which are all-powerful in gaining all they ask!
O my beloved Jesus! O sweet Mary! I trust in Thee. To Thee do I give my soul; Thou doth love it so much, have pity on it, and save it.