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Collect: O God who has transformed us from the kingdom of darkness unto the kingdom of light, grant me to further detest my sins, through Christ our Lord. Amen.
Summary
In the Sed Contra, St. Thomas merely quotes an authority, i.e., Psalm 31:5. He comments on this verse in another place, "the effect of confessing is so great that forgiveness is given not only to the one who actually confessed but also to the one with the intention of confessing."