Proverbs 20:27
The spirit of man is the candle of the LORD, searching all the inward parts of the belly.
Torrey's Topical Textbook—AKJV

Romans 2:15
Which show the work of the law written in their hearts, their conscience also bearing witness, and their thoughts the mean while accusing or else excusing one another;)
Torrey's Topical Textbook—AKJV