(_Ad_ 2_m._) "Temporal goods which are given a man by God are his as regards their possession, but as regards their use, if they should be superfluous to him, they belong also to others who may be provided for out of them. Hence St. Basil says: 'If you admit that God gave these temporal goods to you, is God unjust in thus unequally distributing His favours? Why should you abound, and another be forced to beg, unless it is intended thereby that you should merit by your generosity, and he by his patience? For it is the bread of the starving that you cling to; it is the clothes of the naked that hang locked in your wardrobe; it is the shoes of the barefooted that are ranged in your room; it is the silver of the needy that you hoard. For you are injuring whoever is in want.' And Ambrose repeats the same thing."
Here it will be noticed that we find the real meaning of those words about a man's duty of portioning out readily to another's use what belongs to himself. It is the correlative to the right to private property.
But a second quotation must be made from another passage closely following on the preceding:
"There is a time when to withhold alms is to commit mortal sin. Namely, when on the part of the receiver there is evident and urgent necessity, and he does not seem likely to be provided for otherwise, and when on the part of the giver he has superfluities of which he has not any probable immediate need. Nor should the future be in question, for this would be looking to the morrow, which the Master has forbidden (Matt. 6)."
(_Ibid._, 32, 6.) "But 'superfluous' and 'necessity' are to be interpreted according to their most probable and generally accepted meaning. 'Necessary' has two meanings. First, it implies something without which a thing cannot exist. Interpreted in this sense, a man has no business to give alms out of what is necessary to him; for example, if a man has only enough wherewith to feed himself and his sons or others dependent on him. For to give alms out of this would be to deprive himself and his of very life, unless it were indeed for the sake of prolonging the life of someone of extreme importance to Church and State. In that case it might be praiseworthy to expose his life and the lives of others to grave risk, for the common good is to be preferred to our own private interests. Secondly, 'necessary' may mean that without which a person cannot be considered to uphold becomingly his proper station, and that of those dependent on him. The exact measure of this necessity cannot be very precisely determined, as to how far things added may be beyond the necessity of his station, or things taken away be below it. To give alms, therefore, out of these is a matter not of precept, but of counsel. For it would not be right to give alms out of these, so as to help others, and thereby be rendered unable to fulfil the obligations of his state of life. For no one should live unbecomingly. Three exceptions, however, should be made. First, when a man wishes to change his state of life. Thus it would be an act of perfect virtue if a man, for the purpose of entering a religious order, distributed to the poor for Christ's sake all that he possessed. Secondly, when a man gives alms out of what is necessary for his state of life, and yet does so knowing that they can very easily be supplied to him again without much personal inconvenience. Thirdly, when some private person, still more when the State itself, is in the gravest need. In these cases it would be most praiseworthy for a man to give what seemingly was required for the upkeep of his station in life in order to provide against some far greater need."