君父の讐は倶に天を戴かず
Meanings
1
not wanting to live under the same sky as one's father's or lord's enemy; being prepared to sacrifice one's life to avenge one's father or lord
A classical proverb from the Book of Rites, expressing the ultimate filial or loyal vengeance. Used in literary or historical contexts; not part of everyday speech.
See also: 不倶戴天
The phrase 'not wanting to live under the same sky as one's father's or lord's enemy' expresses the Confucian ethic of vengeance.