Despair Prayer (Prayer for God's Mercy and Pardon for Sin)
Lord, I am in this world to show Your mercy to others. Other people will glorify You by making visible the power of Your grace by their fidelity and constancy to You. For my part I will glorify You by making known how good You are to sinners, that Your mercy is boundless and that no sinner no matter how great his offences should have reason to despair of pardon. If I have grievously offended You, My Redeemer, let me not offend You even more by thinking that You are not kind enough to pardon Me. Amen.
~Saint Claude de la Colombiere