Parable of the Master and Servant

The prayer of Thanksgiving after Communion by Thomas Aquinas includes a phrase similar to the last verse of this parable:
I thank You, O holy Lord, almighty Father, eternal God, who have deigned, not through any merits of mine, but out of the condescension of Your goodness, to satisfy me a sinner, Your unworthy servant.
(Painting by Alphonse Legros)

The Parable of the Master and Servant is a parable told by Jesus in the New Testament, found only in Luke's Gospel (Luke 17:7–10). The parable teaches that when somebody "has done what God expects, he or she is only doing his or her duty."[1]

  1. ^ Cite error: The named reference AH was invoked but never defined (see the help page).