Psalm 51:6 in the King James Version
Behold, thou desirest truth in the inward parts: and in the hidden part thou shalt make me to know wisdom.
Context
5 Behold, I was born in iniquity. My mother conceived me in sin.
6 Behold, you desire truth in the inward parts. You teach me wisdom in the inmost place.
7 Purify me with hyssop, and I will be clean. Wash me, and I will be whiter than snow.