en_tn/deu/21/18.md

General Information:

Moses continues speaking to the people of Israel.

who will not obey the voice of his father or the voice of his mother

Here "voice" is a metonym for what a person says. Alternate translation: "who will not obey what his father or mother say" (See: rc://en/ta/man/translate/figs-metonymy)

they correct him

"they punish him for his wrongdoing" or "they train and instruct him"