Speaking of his apostolic ministry, Paul clearly pays special attention to both the spiritual and the material unity of the Church. It is no accident that he especially asks the Roman Christians to pray for him: for him, it is clear, it is very important that the Roman church, which he wants to visit, participate in his ministry through prayer (vv. 30-32). The spiritual unity of the Church for the apostle is evidently not an abstraction, but a completely concrete reality: in order to experience spiritual unity in a personal meeting, one must learn to experience it also when the inhabitants of the Kingdom are separated by physical space, whose overcoming in our not yet fully transformed world requires certain efforts, both spiritual and physical. If brothers are remembered only as long as they are nearby, then those who remember have not yet partaken of the Kingdom, where memory does not depend on physical distances. The proverb "out of sight, out of mind" is quite fair for the untransformed world, but it does not apply to the relationships of the Kingdom.
On the other hand, Paul evidently considers very important the financial help that Christians from other churches, made up apparently mostly of converted Gentiles, give to the Jerusalem church (vv. 25-27). Here the matter is not so much spiritual support as material, financial support. But for Paul, it is clear, such material support is also a spiritual matter. And not only because helping brothers in need is a work of love and an act of a righteous person, but also because the Kingdom includes every possible kind of interpersonal relationship, including financial ones.
The saying "friendship is friendship, but keep the tobacco separate" is, even for people living in our not yet fully transformed world, an example not of what relationships with one's neighbor should be, but of what they should not be. This is all the more true when the Kingdom is in view, for here all relationships between people are transformed, not only those that we customarily call "spiritual" and that, as people often think, should not touch the financial and, more broadly, material side at all, as though it were something "base" and "unspiritual." For the apostle, however, everything connected with relationships among people in the Kingdom has to do with spiritual life. And he rejoices in every manifestation of love, whether it is expressed in prayer or in financial support.
