From paideuo; tutorage, i.e. Education or training; by implication, disciplinary correction -- chastening, chastisement, instruction, nurture.
see GREEK paideuo
1. the whole training and education of children (which relates to the cultivation of mind and morals, and employs for this purpose now commands and admonitions, now reproof and punishment): Ephesians 6:4 (cf. Winers Grammar, 388 (363) note); (in Greek writings from Aeschylus on, it includes also the care and training of the body.) (See especially Trench, Synonyms, § xxxii.; cf. Jowett's Plato, index under the word Education).
2. "whatever in adults also cultivates the soul, especially by correcting mistakes and curbing the passions "; hence,
a. instruction which aims at the increase of virtue: 2 Timothy 3:16.
b. according to Biblical usage chastisement, chastening (of the evils with which God visits men for their amendment): Hebrews 12:5 (Proverbs 3:11),