I am uncertain of the history of this prayer, but Saint Claude does a good job capturing the heart of the matter…
My God, I am so persuaded that You watch over all who hope in You and nothing can be lacking to those who await from You all things, that I have determined to live from now on without any concern, letting go and giving You all of my anxieties.
I will sleep and rest in peace because You, O Lord, and only You, have secured my hope. Men can deprive me of possessions and reputation; illnesses can take away my strength and means to serve You; I myself can lose Your grace because of sin; but I will not lose my hope; I will conserve it until the last instant of my life and all the efforts from demons trying to take it away from me will be useless.
I will sleep and rest in peace. May others expect happiness in their richness and talents; some may lean on the innocence of their lives, or the rigor of their penitence, or above all on the amount of their good works,or the fervor of their prayers.
As for myself Lord, all my confidence is my confidence itself. Because You Lord, only You have secured my hope. No one has been deceived by this confidence. No one who has waited in the Lord has been frustrated in their confidence.
Therefore, I am sure that I will be eternally happy because I firmly hope to be; and because You, Oh, My God, are in Whom I expect all. In You I hope Lord, and never will I be confused. I know very well . . . too well that I am fragile and inconstant, I know well the power of temptations against the most firm virtue; I have seen the stars fall from heaven and columns from the firmament; but none of this can frighten me.
As long as I maintain firm my hope, I will be conserved from all calamities; and I am sure to hope always, because I hope the same in this unchanging hope.
In conclusion, I am sure that I cannot hope in excess in You and that I will receive all that I would have hoped for in You. Therefore, I know You will sustain me on the most rapid and slippery slopes, that You will strengthen me against the assaults and make my weakness triumph
over the most tremendous enemies.I hope You will always love me and I will love you without interruption; to take once and for all my hope as far as it can reach. I hope in You and only in You!
Oh, My Creator! In time and for all eternity. Amen.