Ecclesiastes 12:11-14

The words of the wise are like cattle prods—painful but helpful. Their collected sayings are like a nail-studded stick with which a shepherd  drives the sheep. But, my child,  let me give you some further advice: Be careful, for writing books is endless, and much study wears you out. That’s the whole story. Here now is my final conclusion: Fear God and obey his commands, for this is everyone’s duty.  God will judge us for everything we do, including every secret thing, whether good or bad. (Ecclesiastes 12:11-14 NLT)