Proverbs 23:12 in the World English Bible
Apply your heart to instruction, and your ears to the words of knowledge.
Context
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.