Proverbs 20:27 in the World English Bible
The spirit of man is the LORD’s lamp, searching all his innermost parts.
Context
26 A wise king scattereth the wicked, and bringeth the wheel over them.
27 The spirit of man is the candle of the LORD, searching all the inward parts of the belly.
28 Mercy and truth preserve the king: and his throne is upholden by mercy.