Psalms 64:6

They search out injustice , saying, We have accomplished a diligent search . For the inward mind and heart of a man are deep .

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

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