(b) The intention of him who cooperates must be good; for, if he wills to help a false religion, he is guilty of formal cooperation; if he wills some other wrong end, he is guilty of some other species of sin. Thus, if one who does not believe in idolatry contributes to it on account of sympathy with anti-Christian movements, he is guilty of enmity to the truth.
(c) There must be a reason for the cooperation proportionate to the gravity of the sin which will be committed by others, to the proximity and necessity of the cooperation, and to the obligation which one has of preventing the sin of others. Examples: To contribute to a sect which plots the downfall of legitimate authority is never lawful, for there is no reason of temporal or private good that can be a compensation for the destruction of the public good. To contribute to the building of a Mohammedan mosque does not require so serious a reason as to contribute to the building of a pagan temple, for mosques are not used for idolatry. A graver reason is needed to justify ringing the bell or ushering the people to their seats for a service of false worship than to justify sweeping and dusting the temple the day before the service, for in the former case the cooperation is closer. A greater reason is required to build a house of false worship, when there is no one else to build it, than when there are many others who will gladly build it if one refuses, for in the former case one’s cooperation is so necessary that without it the false worship cannot take place, but not so in the latter case. A much more serious reason would be required to justify parents conducting their children to a place of false worship than would be required to justify a public chauffeur in taking passengers thither; for the parents have a special duty to guard the religion of their children.
979. The above principles on mediate cooperation are clear enough, but it is frequently very difficult to apply them on account of the uncertainty as to whether or not a particular act of cooperation is indifferent in itself, or whether a particular reason for cooperation is sufficient. But the following rules will help:
(a) An act is indifferent or good, when it does not tend to evil from its very nature or the circumstances, but has purposes that are not bad. It is bad when either intrinsically (i.e., from its nature) or extrinsically (i.e., from circumstances) it tends necessarily to evil. Examples: A derisory image of Christ and the manual of an obscene cult are intrinsically evil, inasmuch as they necessarily convey error or immorality. To draw up plans for a temple of idolaters in a Christian country would have the appearance of favoring the propagation of idolatry; to work on the construction of a temple in a pagan country where the lending of one’s labor is regarded as a sign of acceptance of paganism, to help build a meeting house for a sect that plots the overthrow of government or religion—all these acts are indifferent in themselves (for one may also draw plans and put up walls for good or indifferent purposes), but from the circumstances they are evil in the cases given.
(b) Reasons for cooperation may be ranked as great, greater and greatest according to the kinds of goods that are at stake, and their sufficiency or insufficiency may be determined by measuring them with the gravity of the cooperation that is given. Great reasons are: fear of serious suffering, or of the wrath of husband or other superior, or of loss of an opportunity to make a considerable profit. Greater reasons are: fear of loss of position, or of notable detriment to reputation or fortune, or of severe imprisonment. Among the greatest reasons for cooperation in the worship of a false religion are the following: danger of loss of life or limb, of perpetual imprisonment, of great dishonor, of loss of all one’s earthly possessions, of disturbance of the public peace.
980. Cases of cooperation in false religion that occur most frequently are: (a) contributions made to schools, churches, institutions; (b) labor given to buildings and objects of worship or instruction; (c) labor given to acts of worship or instruction.
981. Contributions to false worship are unlawful, even apart from scandal, danger of perversion, and the bad intention of the cooperator in the following cases:
(a) When on account of circumstances the contributions are signs of sympathy with religious errors. Examples: Titus gives many stipends for Masses to a schismatical priest. Balbus, when asked, contributes liberally to a fund for the building of a hall under the auspices of atheists. Caius, without being asked, gives a small donation towards the erection of a pagan temple. Claudius sends in a subscription to the treasury of a political organization whose purpose is anti-religious, and promises to support their ticket.
(b) Contributions, even though they manifest no sympathy with religious error, are unlawful, when there is no reason for the cooperation, or only an insufficient reason. Examples: Caius contributes to a pagan temple for no other reason than that he has not the heart to refuse anyone. Titus advertises constantly in an antireligious paper in order to help his business (cfr. 1530).
982. If there is no bad intention on the part of the contributor, and if the danger of scandal or perversion is excluded, contributions are permitted under the following conditions, of which both must be present: