Proverbs 29:15

15 The rod and reproof give wisdom: but a child left to himself bringeth his mother to shame.

Proverbs 29:15 In-Context

13 The poor and the deceitful man meet together: the LORD lighteneth both their eyes.
14 The king that faithfully judgeth the poor, his throne shall be established for ever.
15 The rod and reproof give wisdom: but a child left to himself bringeth his mother to shame.
16 When the wicked are multiplied, transgression increaseth: but the righteous shall see their fall.
17 Correct thy son, and he shall give thee rest; yea, he shall give delight unto thy soul.
The King James Version is in the public domain.