Archaic respectful term for one's own father, found in classical Japanese texts. Not used in modern conversation.
古い文献では、「父の命」は父を敬って呼ぶ言葉として使われている。
In old documents, 父の命 is used as a respectful term for one's father.
Compound of 父 (ちち, 'father') + の (possessive particle) + 命 (みこと, an honorific suffix for gods or high-ranking persons). The exact historical derivation is uncertain, but it follows a pattern of respectful address in classical Japanese.