Psalm 64:6

English Standard Version

6 They search out injustice, saying, “We have accomplished a diligent search.” For the inward mind and heart of a man are deep. (Ps 49:11)

New International Version

6 They plot injustice and say, “We have devised a perfect plan!” Surely the human mind and heart are cunning.

New Int. Readers Version

6 They make plans to do what is evil. They say, “We have thought up a perfect plan!” The hearts and minds of people are so clever!

King James Version

6 They search out iniquities; they accomplish a diligent search: both the inward thought of every one of them , and the heart, is deep.