The Parable of the Master and Servant is a parable told by Jesus in the New Testament, found only in Luke's Gospel (17:7-10 NIV). The parable teaches that when somebody "has done what God expects, he or she is only doing his or her duty."
The parable reads as follows:
This parable suggests that "even the best of God's servants are still unworthy because they have only done their duty and no more."[1] Nobody, "no matter how virtuous or hardworking, can ever put God in his or her debt."[2]
William Barclay[3] relates the parable to the last verse of the Isaac Watts hymn "When I Survey the Wondrous Cross":
Were the whole realm of Nature mine,That were an offering far too small;Love so amazing, so divine,Demands my soul, my life, my all.[4]
The phrase "unworthy servant" in the last verse of the parable is widely used liturgically, such as in the Liturgy of St. John Chrysostom.[5]
Scottish biblical writer William Nicoll refers to this story as "the parable of extra service".[6]