Matthew 15:19
For from the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false testimonies, blasphemies:
Acts 8:22
Turn your mind therefore from this your wickedness, and pray the Lord if perhaps the thought of your mind may be forgiven you;
Matthew 5:28
but I tell you, that every one who looks on a woman to desire her inordinately, has already committed adultery with her in his heart.
Matthew 9:4
And Jesus observing their thoughts, said, Why do you think evil in your hearts?
2 Corinthians 10:5
destroying [false] reasonings and every height which is exalted against the knowledge of God, and subjecting every thought to the obedience of Christ,