The second type of knowledge, intellectual knowledge, is abstract and general. This knowledge is quite different from the concrete and particular of external and internal senses. The general ability to understand covers simple apprehension, judgment, and reasoning. Simple apprehension is when the mind accepts an object without affirming or denying it. The issue of judgment is the reality that two objects are in agreement or disagreement.
Belief occurs through faith.
A person may not be moved to accept an object as true, but by an act of will, he believes. Objects of belief deal with divine matters which exceed man's cognitive capabilities. A mistake occurs as a result of a judgment in the intellect. A lie is an act which falls upon improper matter because words are signs of what is understood. A lie is of itself mean and something to be avoided, while the truth is good and praiseworthy.