Matthew 23:28
Even so you also outwardly appear righteous to men, but inwardly you are full of hypocrisy and iniquity.
Matthew 23:5
But all their works they do to be seen by men. They make their phylacteries broad, enlarge the fringes of their garments,
1 Samuel 16:7
But Yahweh said to Samuel, "Don't look on his face, or on the height of his stature; because I have rejected him: for [Yahweh sees] not as man sees; for man looks at the outward appearance, but Yahweh looks at the heart."
Psalm 51:6
Behold, you desire truth in the inward parts. You teach me wisdom in the inmost place.
Jeremiah 17:9-10
The heart is deceitful above all things, and it is exceedingly corrupt: who can know it?
Matthew 12:34-35
You offspring of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks.
Matthew 15:19-20
For out of the heart come forth evil thoughts, murders, adulteries, sexual sins, thefts, false testimony, and blasphemies.
Mark 7:21-23
For from within, out of the hearts of men, proceed evil thoughts, adulteries, sexual sins, murders, thefts,
Luke 16:15
He said to them, "You are those who justify yourselves in the sight of men, but God knows your hearts. For that which is exalted among men is an abomination in the sight of God.
Hebrews 4:12-13
For the word of God is living, and active, and sharper than any two-edged sword, and piercing even to the dividing of soul and spirit, of both joints and marrow, and is able to discern the thoughts and intentions of the heart.