On the contrary, Covetousness is numbered together with other special sins ( Rom. 1:29 ), where it is written: "Being filled with all iniquity, malice, fornication, covetousness" [Douay: 'avarice'], etc.
I answer that, Sins take their species from their objects, as stated above (FS, Q[72], A[1]). Now the object of a sin is the good towards which an inordinate appetite tends. Hence where there is a special aspect of good inordinately desired, there is a special kind of sin. Now the useful good differs in aspect from the delightful good. And riches, as such, come under the head of useful good, since they are desired under the aspect of being useful to man. Consequently covetousness is a special sin, forasmuch as it is an immoderate love of having possessions, which are comprised under the name of money, whence covetousness [avaritia] is denominated.
Since, however, the verb "to have," which seems to have been originally employed in connection with possessions whereof we are absolute masters, is applied to many other things (thus a man is said to have health, a wife, clothes, and so forth, as stated in De Praedicamentis), consequently the term "covetousness" has been amplified to denote all immoderate desire for having anything whatever. Thus Gregory says in a homily (xvi in Ev.) that "covetousness is a desire not only for money, but also for knowledge and high places, when prominence is immoderately sought after." In this way covetousness is not a special sin: and in this sense Augustine speaks of covetousness in the passage quoted in the First Objection. Wherefore this suffices for the Reply to the First Objection.
Reply to Objection 2: All those external things that are subject to the uses of human life are comprised under the term "money," inasmuch as they have the aspect of useful good. But there are certain external goods that can be obtained by money, such as pleasures, honors, and so forth, which are desirable under another aspect. Wherefore the desire for such things is not properly called covetousness, in so far as it is a special vice.
Reply to Objection 3: This gloss speaks of the inordinate concupiscence for anything whatever. For it is easy to understand that if it is forbidden to covet another's possessions it is also forbidden to covet those things that can be obtained by means of those possessions.
Whether covetousness is opposed to liberality?
Objection 1: It seems that covetousness is not opposed to liberality. For Chrysostom, commenting on Mat. 5:6, "Blessed are they that hunger and thirst after justice," says, (Hom. xv in Matth.) that there are two kinds of justice, one general, and the other special, to which covetousness is opposed: and the Philosopher says the same (Ethic. v, 2). Therefore covetousness is not opposed to liberality.
Objection 2: Further, the sin of covetousness consists in a man's exceeding the measure in the things he possesses. But this measure is appointed by justice. Therefore covetousness is directly opposed to justice and not to liberality.
Objection 3: Further, liberality is a virtue that observes the mean between two contrary vices, as the Philosopher states (Ethic. i, 7; iv, 1). But covetousness has no contrary and opposite sin, according to the Philosopher (Ethic. v, 1,2). Therefore covetousness is not opposed to liberality.
On the contrary, It is written ( Eccles. 5:9 ): "A covetous man shall not be satisfied with money, and he that loveth riches shall have no fruits from them." Now not to be satisfied with money and to love it inordinately are opposed to liberality, which observes the mean in the desire of riches. Therefore covetousness is opposed to liberality.
I answer that, Covetousness denotes immoderation with regard to riches in two ways. First, immediately in respect of the acquisition and keeping of riches. In this way a man obtains money beyond his due, by stealing or retaining another's property. This is opposed to justice, and in this sense covetousness is mentioned ( Ezech. 22:27 ): "Her princes in the midst of her are like wolves ravening the prey to shed blood . . . and to run after gains through covetousness." Secondly, it denotes immoderation in the interior affections for riches; for instance, when a man loves or desires riches too much, or takes too much pleasure in them, even if he be unwilling to steal. In this way covetousness is opposed to liberality, which moderates these affections, as stated above (Q[117], A[2], ad 3, A[3], ad 3, A[6]). In this sense covetousness is spoken of ( 2 Cor. 9:5 ): "That they would . . . prepare this blessing before promised, to be ready, so as a blessing, not as covetousness," where a gloss observes: "Lest they should regret what they had given, and give but little."
Reply to Objection 1: Chrysostom and the Philosopher are speaking of covetousness in the first sense: covetousness in the second sense is called illiberality [*] by the Philosopher.
Reply to Objection 2: It belongs properly to justice to appoint the measure in the acquisition and keeping of riches from the point of view of legal due, so that a man should neither take nor retain another's property. But liberality appoints the measure of reason, principally in the interior affections, and consequently in the exterior taking and keeping of money, and in the spending of the same, in so far as these proceed from the interior affection, looking at the matter from the point of view not of the legal but of the moral debt, which latter depends on the rule of reason.
Reply to Objection 3: Covetousness as opposed to justice has no opposite vice: since it consists in having more than one ought according to justice, the contrary of which is to have less than one ought, and this is not a sin but a punishment. But covetousness as opposed to liberality has the vice of prodigality opposed to it.
Whether covetousness is always a mortal sin?
Objection 1: It seems that covetousness is always a mortal sin. For no one is worthy of death save for a mortal sin. But men are worthy of death on account of covetousness. For the Apostle after saying ( Rom. 1:29 ): "Being filled with all iniquity . . . fornication, covetousness [Douay: 'avarice']," etc. adds ( Rom. 1:32 ): "They who do such things are worthy of death." Therefore covetousness is a mortal sin.
Objection 2: Further, the least degree of covetousness is to hold to one's own inordinately. But this seemingly is a mortal sin: for Basil says (Serm. super. Luc. xii, 18): "It is the hungry man's bread that thou keepest back, the naked man's cloak that thou hoardest, the needy man's money that thou possessest, hence thou despoilest as many as thou mightest succor."
Now it is a mortal sin to do an injustice to another, since it is contrary to the love of our neighbor. Much more therefore is all covetousness a mortal sin.
Objection 3: Further, no one is struck with spiritual blindness save through a mortal sin, for this deprives a man of the light of grace. But, according to Chrysostom [*Hom. xv in the Opus Imperfectum, falsely ascribed to St. Chrysostom], "Lust for money brings darkness on the soul." Therefore covetousness, which is lust for money, is a mortal sin.
On the contrary, A gloss on 1 Cor. 3:12, "If any man build upon this foundation," says (cf. St. Augustine, De Fide et Oper. xvi) that "he builds wood, hay, stubble, who thinks in the things of the world, how he may please the world," which pertains to the sin of covetousness. Now he that builds wood, hay, stubble, sins not mortally but venially, for it is said of him that "he shall be saved, yet so as by fire." Therefore covetousness is some times a venial sin.
I answer that, As stated above (A[3]) covetousness is twofold. In one way it is opposed to justice, and thus it is a mortal sin in respect of its genus. For in this sense covetousness consists in the unjust taking or retaining of another's property, and this belongs to theft or robbery, which are mortal sins, as stated above (Q[66], AA[6],8). Yet venial sin may occur in this kind of covetousness by reason of imperfection of the act, as stated above (Q[66], A[6], ad 3), when we were treating of theft.
In another way covetousness may be take as opposed to liberality: in which sense it denotes inordinate love of riches. Accordingly if the love of riches becomes so great as to be preferred to charity, in such wise that a man, through love of riches, fear not to act counter to the love of God and his neighbor, covetousness will then be a mortal sin. If, on the other hand, the inordinate nature of his love stops short of this, so that although he love riches too much, yet he does not prefer the love of them to the love of God, and is unwilling for the sake of riches to do anything in opposition to God or his neighbor, then covetousness is a venial sin.
Reply to Objection 1: Covetousness is numbered together with mortal sins, by reason of the aspect under which it is a mortal sin.
Reply to Objection 2: Basil is speaking of a case wherein a man is bound by a legal debt to give of his goods to the poor, either through fear of their want or on account of his having too much.
Reply to Objection 3: Lust for riches, properly speaking, brings darkness on the soul, when it puts out the light of charity, by preferring the love of riches to the love of God.