Is someone obliged to marry if that is the only way he can support his parents?
This article is from Quodlibetal 10, q. 5, a. 1.
Whether someone is bound to contact marriage in order to support his father by the marriage dowry, if he is not able to support him otherwise.
It seems that a son who cannot support his father unless by marrying he receives a dowry from which he can look after his father, is not obliged to contract marriage in order to support his father.
1. Since charity is orderly, he is obliged more to himself than to his father. But it would be praiseworthy for someone to face death in order to preserve his virginity. Therefore someone is not obliged to contract marriage in order to save his father's life.
2. Further, precepts are not opposed to counsels. But preserving virginity is a counsel, as is evident from 1 Cor. 7:25. Therefore the precept of honoring one's parents does not oblige someone to lose his virginity.
On the contrary: Affirmative precepts are binding at certain times and in certain places. But the time when one's parents are in need is a time when one is bound to honor one's parents. Therefore at that time someone is bound by this precept. And so it seems that he is bound to contract marriage, if he cannot otherwise support his father.
Response: It should be said that the case proposed does not seem to be readily possible, since it can scarcely happen that someone is unable to support his parents without contracting marriage, at least by manual work or by begging. But if this were to happen, the judgment to be made in this case concerning the preservation of virginity would be the same as concerning other works of perfection, such as entering religious life.
Now different people have different opinions about this. Some say that if someone's father is in need, he should give all that he has, if he has anything, for the support of his father, and he can thus licitly enter religious life, committing the care of his parents to the heavenly Father, who feeds even the birds.
But because this opinion seems too severe, it seems to me better to say the following: he who desires to enter religious life may see that he cannot live in the world without mortal sin, or cannot easily do so. If he fears the danger of his committing mortal sin, then, since he is more obliged to care for the salvation of his soul than for the bodily need of his parents, he is not obliged to remain in the world. But if he sees that he can live in the world without sin, it seems one should make a distinction: if his parents can in no way live without his services to them, he is obliged to serve them and to forego other works of perfection, and he would sin by leaving his parents; but if they can in some way be supported without his services, just not respectably, he is not therefore obliged to forego works of perfection. The case is different when someone has already entered religious life; for since he has already died to the world by religious profession, he is freed from the law by which he was bound to his parents in worldly services, as the Apostle teaches in Rom 7:6. But in other, spiritual matters, such as by prayers, etc., he is bound to serve his parents.
What has been said about entering religious life can also be said about the observance of virginity and other works of perfection.
Replies to Objections
Reply 1. To the first objection, therefore, it should be said that if someone has not professed virginity, he should not die of hunger before contracting marriage [but should marry if that is necessary in order to live].
Reply 2. To the second objection it should be said that nothing prevents a precept from being opposed to a counsel in a particular situation.