• Jeremiah 17:10
  I, the LORD, search the heart,
  I test the mind,
  Even to give every man according to his ways,
  According to the fruit of his doings.
  
   
• 1 Chronicles 28:9
  "As for you, my son Solomon, know the God of your father, and serve Him with a loyal heart and with a willing mind; for the LORD searches all hearts and understands all the intent of the thoughts. If you seek Him, He will be found by you; but if you forsake Him, He will cast you off forever.
   

Related Scriptures

• Proverbs 4:23
  Keep your heart with all diligence,
  For out of it spring the issues of life.