On the contrary, It is written, (Ps. 75:12): "Vow ye, and pay to the Lord your God"; and a gloss of Augustine says that "some vows concern the individual, such as vows of chastity, virginity, and the like." Consequently Holy Scripture invites us to vow these things. But Holy Scripture invites us only to that which is better. Therefore it is better to bind oneself by vow to enter religion.
I answer that, As stated above (Q. 88, A. 6), when we were treating of vows, one and the same work done in fulfilment of a vow is more praiseworthy than if it be done apart from a vow, both because to vow is an act of religion, which has a certain pre-eminence among the virtues, and because a vow strengthens a man's will to do good; and just as a sin is more grievous through proceeding from a will obstinate in evil, so a good work is the more praiseworthy through proceeding from a will confirmed in good by means of a vow. Therefore it is in itself praiseworthy to bind oneself by vow to enter religion.
Reply Obj. 1: The religious vow is twofold. One is the solemn vow which makes a man a monk or a brother in some other religious order. This is called the profession, and such a vow should be preceded by a year's probation, as the objection proves. The other is the simple vow which does not make a man a monk or a religious, but only binds him to enter religion, and such a vow need not be preceded by a year's probation.
Reply Obj. 2: The words quoted from Gregory must be understood as referring to absolute violence. But the compulsion arising from the obligation of a vow is not absolute necessity, but a necessity of end, because after such a vow one cannot attain to the end of salvation unless one fulfil that vow. Such a necessity is not to be avoided; indeed, as Augustine says (Ep. cxxvii ad Armentar. et Paulin.), "happy is the necessity that compels us to better things."
Reply Obj. 3: The vow to enter religion is a strengthening of the will for better things, and consequently, considered in itself, instead of giving a man an occasion of falling, withdraws him from it. But if one who breaks a vow falls more grievously, this does not derogate from the goodness of the vow, as neither does it derogate from the goodness of Baptism that some sin more grievously after being baptized. _______________________
THIRD ARTICLE [II-II, Q. 189, Art. 3]
Whether One Who Is Bound by a Vow to Enter Religion Is Under an
Obligation of Entering Religion?
Objection 1: It would seem that one who is bound by the vow to enter religion is not under an obligation of entering religion. For it is said in the Decretals (XVII, qu. ii, can. Consaldus): "Consaldus, a priest under pressure of sickness and emotional fervour, promised to become a monk. He did not, however, bind himself to a monastery or abbot; nor did he commit his promise to writing, but he renounced his benefice in the hands of a notary; and when he was restored to health he refused to become a monk." And afterwards it is added: "We adjudge and by apostolic authority we command that the aforesaid priest be admitted to his benefice and sacred duties, and that he be allowed to retain them in peace." Now this would not be if he were bound to enter religion. Therefore it would seem that one is not bound to keep one's vow of entering religion.
Obj. 2: Further, no one is bound to do what is not in his power. Now it is not in a person's power to enter religion, since this depends on the consent of those whom he wishes to join. Therefore it would seem that a man is not obliged to fulfil the vow by which he bound himself to enter religion.
Obj. 3: Further, a less useful vow cannot remit a more useful one. Now the fulfilment of a vow to enter religion might hinder the fulfilment of a vow to take up the cross in defense of the Holy Land; and the latter apparently is the more useful vow, since thereby a man obtains the forgiveness of his sins. Therefore it would seem that the vow by which a man has bound himself to enter religion is not necessarily to be fulfilled.