In the falling state of the empire the towns and villages of Egypt found their rulers too weak either to guard them or to tyrannise over them, and they sometimes formed themselves into small societies, and took means for their own defence. The law had so far allowed this as in some cases to grant a corporate constitution to a city. But in other cases a city kept in its pay a courtier or government servant powerful enough to guard it against the extortions of the provincial tax-gatherer, or would put itself under the patronage of a neighbour rich enough and strong enough to guard it. This, however, could not be allowed, even if not used as the means of throwing off the authority of the provincial government; and accordingly at this time we begin to find laws against the new crime of _patronage_. These associations gave a place of refuge to criminals, they stopped the worshipper in his way to the temple, and the tax-gatherer in collecting the tribute. But new laws have little weight when there is no power to enforce them, and the orders from Constantinople were little heeded in Upper Egypt. But this _patronage_ which the emperor wished to put down was weak compared to that of the bishops and clergy, which the law allowed and even upheld, and which was the great check to the tyranny of the civil governor. While the emperor at a distance gave orders through his prefect, the people looked up to the bishop as their head; and hence the power of each was checked by the other. The emperors had not yet made the terrors of religion a tool in the hands of the magistrate; nor had they yet learned from the pontifex and augurs of pagan Rome the secret that civil power is never so strong as when based on that of the Church.