Of the Quasi-integral Parts of Justice

Of the Quasi-integral Parts of Justice — St. Thomas Aquinas asks: Whether to decline from evil and to do good are parts of justice?; Whether transgression is a special sin?; Whether omission is a special sin?; Whether a sin of omission is more grievous than a sin of transgression?.

We must now consider the quasi-integral parts of justice, which are "to do good," and "to decline from evil," and the opposite vices. Under this head there are four points of inquiry:

Article 1: Whether to decline from evil and to do good are parts of justice?

Augustine (De Correp. et Grat. i) declares that "declining from evil and doing good" belong to the justice of the law.

If we speak of good and evil in general, it belongs to every virtue to do good and to avoid evil: and in this sense they cannot be reckoned parts of justice, except justice be taken in the sense of "all virtue" [*Cf.[2972] ]. And yet even if justice be taken in this sense it regards a certain special aspect of good; namely, the good as due in respect of Divine or human law.

On the other hand justice considered as a special virtue regards good as due to one's neighbor. And in this sense it belongs to special justice to do good considered as due to one's neighbor, and to avoid the opposite evil, that, namely, which is hurtful to one's neighbor; while it belongs to general justice to do good in relation to the community or in relation to God, and to avoid the opposite evil.

Now these two are said to be quasi-integral parts of general or of special justice, because each is required for the perfect act of justice. For it belongs to justice to establish equality in our relations with others, as shown above (): and it pertains to the same cause to establish and to preserve that which it has established. Now a person establishes the equality of justice by doing good, i.e. by rendering to another his due: and he preserves the already established equality of justice by declining from evil, that is by inflicting no injury on his neighbor.

Article 2: Whether transgression is a special sin?

It is opposed to a special virtue, namely justice.

The term transgression is derived from bodily movement and applied to moral actions. Now a person is said to transgress in bodily movement, when he steps [graditur] beyond [trans] a fixed boundary---and it is a negative precept that fixes the boundary that man must not exceed in his moral actions. Wherefore to transgress, properly speaking, is to act against a negative precept.

Now materially considered this may be common to all the species of sin, because man transgresses a Divine precept by any species of mortal sin. But if we consider it formally, namely under its special aspect of an act against a negative precept, it is a special sin in two ways. First, in so far as it is opposed to those kinds of sin that are opposed to the other virtues: for just as it belongs properly to legal justice to consider a precept as binding, so it belongs properly to a transgression to consider a precept as an object of contempt. Secondly, in so far as it is distinct from omission which is opposed to an affirmative precept.

Article 3: Whether omission is a special sin?

It is written (James 4:17): "To him . . . who knoweth to do good and doth it not, to him it is sin."

omission signifies the non-fulfilment of a good, not indeed of any good, but of a good that is due. Now good under the aspect of due belongs properly to justice; to legal justice, if the thing due depends on Divine or human law; to special justice, if the due is something in relation to one's neighbor. Wherefore, in the same way as justice is a special virtue, as stated above (), omission is a special sin distinct from the sins which are opposed to the other virtues; and just as doing good, which is the opposite of omitting it, is a special part of justice, distinct from avoiding evil, to which transgression is opposed, so too is omission distinct from transgression.

Article 4: Whether a sin of omission is more grievous than a sin of transgression?

It is easier to refrain from evil deeds than to accomplish good deeds. Therefore it is a graver sin not to refrain from an evil deed, i.e. "to transgress," than not to accomplish a good deed, which is "to omit."

The gravity of a sin depends on its remoteness from virtue. Now contrariety is the greatest remoteness, according to Metaph. x [*Didot. ed. ix, 4]. Wherefore a thing is further removed from its contrary than from its simple negation; thus black is further removed from white than not-white is, since every black is not-white, but not conversely. Now it is evident that transgression is contrary to an act of virtue, while omission denotes the negation thereof: for instance it is a sin of omission, if one fail to give one's parents due reverence, while it is a sin of transgression to revile them or injure them in any way. Hence it is evident that, simply and absolutely speaking, transgression is a graver sin than omission, although a particular omission may be graver than a particular transgression.