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to be careful; to be discreet
to do in moderation; to refrain (from overdoing); to abstain
to be reverent
to be purified; to be chaste
年長者の前では言動を虔むのが礼儀だ。
It is proper etiquette to be restrained in words and deeds before elders.
公の場では発言を虔むべきだと忠告された。
I was advised to be careful with my remarks in public settings.
過去の失敗を反省し行動を虔む姿勢を見せた。
He showed an attitude of reflecting on past failures and restraining his behavior.