ㄉㄨㄛduōㄒㄧㄥˊxíngㄅㄨˋˋbùyìㄅㄧˋˋㄅㄧˋzìbì

多行不义必自毙
  1. 壞事做多自取滅亡 天理昭彰報應不爽多行不義必自斃」。

persisting in evil brings about self-destruction (idiom)​