Hebrews 12:6,11
For whom the Lord loveth he chasteneth, and scourgeth every son whom he receiveth. Now no chastening for the present seemeth to be joyous, but grievous: nevertheless afterward it yieldeth the peaceable fruit of righteousness unto them which are exercised thereby.
Proverbs 15:32
He that refuseth instruction despiseth his own soul: but he that heareth reproof getteth understanding.
Proverbs 22:15
Foolishness is bound in the heart of a child; but the rod of correction shall drive it far from him.
Proverbs 16:6
By mercy and truth iniquity is purged: and by the fear of the LORD men depart from evil.
Ecclesiastes 8:11
Because sentence against an evil work is not executed speedily, therefore the heart of the sons of men is fully set in them to do evil.