Jesus says, "For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander."
The list of "murder, adultery, sexual immortality, theft, false witness, slander" specifies the "evil thoughts." This may not be very significant, but this list follows the order of the Ten Commandments: "You shall not murder. You shall not commit adultery. You shall not steal. You shall not give false testimony against your neighbor."