Proverbs 27:19
As in water face answereth to face, So the heart of man to man.
Genesis 6:5
And Jehovah saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.
Psalm 33:15
He that fashioneth the hearts of them all, That considereth all their works.
Mark 7:21
For from within, out of the heart of men, evil thoughts proceed, fornications, thefts, murders, adulteries,
James 1:22-25
But be ye doers of the word, and not hearers only, deluding your own selves.