Proverbs 23:12

12 Apply thine heart unto instruction, and thine ears to the words of knowledge.

Proverbs 23:12 In-Context

10 Remove not the old landmark; and enter not into the fields of the fatherless:
11 For their redeemer is mighty; he shall plead their cause with thee.
12 Apply thine heart unto instruction, and thine ears to the words of knowledge.
13 Withhold not correction from the child: for if thou beatest him with the rod, he shall not die.
14 Thou shalt beat him with the rod, and shalt deliver his soul from hell.
The King James Version is in the public domain.