將功補過

将功补过
jiānggōngbǔguò
to make up for one's faults by doing good deeds (idiom)

CEDICT

to make amends for one's faults by good deeds

Wiktionary

用功勞來補償過失。《舊五代史．卷一三三．周書．世襲傳二．錢鏐傳》：「既容能改之非，許降自新之路，將功補過，舍短從長。」也作「以功覆過」。

重編國語辭典

用功勞來補償過失

維基詞典

Entry Composition

1 將 jiāng
  1. will
  2. shall
  3. to use
  4. to take
  5. to checkmate
  6. just a short while ago
  7. (introduces object of main verb, used in the same way as 把 bǎ)
2 功 gōng
  1. meritorious deed or service
  2. achievement
  3. result
  4. service
  5. accomplishment
  6. work (physics)
3 補過 bǔguò
  1. to make up for an earlier mistake
  2. to make amends