“Behold, thou desirest trueth in the inward parts: and in the hidden part thou shalt make me to know wisedome.”
1611 King James Version (KJV)
51:6 Truth - Uprightness of heart; and this may be added; as an aggravation of the sinfulness of original corruption, because it is contrary to the holy nature and will of God, which requires rectitude of heart: and, as an aggravation of his actual sin, that it was committed against that knowledge, which God had wrote in his heart.