Psalms 62:4 They only consult to cast him down from his excellency: they delight in lies: they bless with their mouth, but they curse inwardly. Selah.

Matthew 7:15 Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.

Romans 2:29 But he is a Jew, which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter; whose praise is not of men, but of God.