24 A mention of the emperor Julian the Apostate († 363) can also show how essential the early Church considered the organized practice of charity. As a child of six years, Julian witnessed the assassination of his father, brother and other family members by the guards of the imperial palace; rightly or wrongly, he blamed this brutal act on the Emperor Constantius, who passed himself off as an outstanding Christian. The Christian faith was thus definitively discredited in his eyes. Upon becoming emperor, Julian decided to restore paganism, the ancient Roman religion, while reforming it in the hope of making it the driving force behind the empire. In this project he was amply inspired by Christianity. He established a hierarchy of metropolitans and priests who were to foster love of God and neighbour. In one of his letters, he wrote that the sole aspect of Christianity which had impressed him was the Church's charitable activity. He thus considered it essential for his new pagan religion that, alongside the system of the Church's charity, an equivalent activity of its own be established. According to him, this was the reason for the popularity of the “Galileans”. They needed now to be imitated and outdone. In this way, then, the Emperor confirmed that charity was a decisive feature of the Christian community, the Church.
Source: Deus Caritas Est (Vatican.va)