Thematic Bible: Supererogation

And you, son of man, say to your people, The uprightness and justice of the [uncompromisingly] righteous shall not deliver him in the day of his transgression; and as for the wicked lawlessness of the wicked lawless, he shall not fall because of it in the day that he turns from his wickedness, neither shall the rigidly upright and just be able to live because of his past righteousness in the day that he sins and misses the mark [in keeping in harmony and right standing with God]. When I shall say to the [uncompromisingly] righteous that he shall surely live, and he trusts to his own righteousness [to save him] and commits iniquity (heinous sin), all his righteous deeds shall not be [seriously] remembered; but for his perversity and iniquity that he has committed he shall die.

So you too, when you have done everything that was assigned and commanded you, say, ‘We are unworthy servants [undeserving of praise or a reward, for we have not gone beyond our obligation]; we have merely done what we ought to do.’” Verse ConceptsCommands, in NTServants, GoodDuty