“Where the flesh is one, one is the spirit too. Together they pray, together prostrate themselves, together perform their fasts; mutually teaching, mutually exhorting, mutually sustaining. Equally are they both found in the Church of God; equally at the banquet of God; equally in straights; in persecutions, in refreshments. Neither hides from the other; neither shuns the other; neither is troublesome to the other; the sick is visited, the indigent relieved, with freedom. Alms are given without danger of torment; sacrifices without scruple; daily diligence without impediment; there is no stealthy singing, no trembling greeting, no mute benediction. Between the two echo psalms and hymns; and they mutually challenge each other which shall better chant to their Lord. Such things when Christ sees and hears, He joys. To these He sends His own peace. Where two are, there withal is He Himself. Where He is, there the evil one is not.” – the Christian Tertullian [cited here]