恶有恶报

virtue has its reward, evil its retribution

Accumulated evil will be repaid in suffering (idiom).

lit. to eat one's own bitter fruit (idiom); fig. to suffer the consequences of one's own actions

to encourage virtue and punish evil (idiom); fig. poetic justice; you get what's coming to you

to eat one's own fruit (idiom); fig. suffering the consequences of one's own action; to reap what one has sown

divine retribution is unfailing (idiom); one is inevitably punished for one's misdeeds