For Augustine says (De Doctr. Christ. i, 28) that we "are unable to
do good to everyone." Now virtue does not incline one to the
impossible. Therefore it is not necessary to do good to all.

Obj. 2: Further, it is written (Ecclus. 12:5) "Give to the good, and
receive not a sinner." But many men are sinners. Therefore we need
not do good to all.

Obj. 3: Further, "Charity dealeth not perversely" (1 Cor. 13:4). Now
to do good to some is to deal perversely: for instance if one were to
do good to an enemy of the common weal, or if one were to do good to
an excommunicated person, since, by doing so, he would be holding
communion with him. Therefore, since beneficence is an act of
charity, we ought not to do good to all.

_On the contrary,_ The Apostle says (Gal. 6:10): "Whilst we have
time, let us work good to all men."

_I answer that,_ As stated above (A. 1, ad 1), beneficence is an
effect of love in so far as love moves the superior to watch over the
inferior. Now degrees among men are not unchangeable as among angels,
because men are subject to many failings, so that he who is superior
in one respect, is or may be inferior in another. Therefore, since
the love of charity extends to all, beneficence also should extend to
all, but according as time and place require: because all acts of
virtue must be modified with a view to their due circumstances.

Reply Obj. 1: Absolutely speaking it is impossible to do good to
every single one: yet it is true of each individual that one may be
bound to do good to him in some particular case. Hence charity binds
us, though not actually doing good to someone, to be prepared in mind
to do good to anyone if we have time to spare. There is however a
good that we can do to all, if not to each individual, at least to
all in general, as when we pray for all, for unbelievers as well as
for the faithful.

Reply Obj. 2: In a sinner there are two things, his guilt and his
nature. Accordingly we are bound to succor the sinner as to the
maintenance of his nature, but not so as to abet his sin, for this
would be to do evil rather than good.

Reply Obj. 3: The excommunicated and the enemies of the common weal
are deprived of all beneficence, in so far as this prevents them from
doing evil deeds. Yet if their nature be in urgent need of succor
lest it fail, we are bound to help them: for instance, if they be in
danger of death through hunger or thirst, or suffer some like
distress, unless this