One Bible reference work suggests that the Greek word translated “discipline ” might be rendered“ child development. ”
وَضَمَائِرُهُمْ لَا تَكُونُ مُدَرَّبَةً ،‏ لِذَا يَحْتَاجُونَ إِلَى ٱلتَّأْدِيبِ أَوِ ٱلتَّدْرِيبِ .‏