Based on his knowledge of the Petrine texts of the Gospel, and his writings which expound upon it, it is easy to see that Leo I identified with the authority bestowed on Peter as bishop of Rome. Leo himself was consecrated bishop of Rome in 440 AD. He writes that "The right of this power did indeed pass on to other apostles, and the order of this decree passed on to all the chiefs of the Church; but not in vain was that which was imparted to all entrusted to but one. Therefore this is commended to Peter separately, because all the rulers of the Church are invested with the figure of Peter. …So then in Peter the strength of all is fortified, and the help of divine grace is so ordered that the stability which through Christ is given to Peter, through Peter is conveyed to the apostles." The Council of Chalcedon would later refer to Leo as "him who had been charged with the custody of the vine by the savior."